Arquivo da tag: Desastre

A Future as Clouded as Their Past (New York Times)

Credit: Carl Wiens

We won’t ever know what the Anasazi were thinking on the eve of the 13th century when they abandoned the cities they had worked so long to build on the Colorado Plateau. The reasons had something to do with climate — a great drought and, perhaps on top of that, a mini ice age. If that wasn’t enough to defeat a thriving culture, there was the turmoil that came from just not knowing. Why were the sky and earth behaving so strangely? Why wasn’t the old magic working anymore?

The rains were not just sparser. They were no longer coming when they were supposed to — when the seedlings were in the ground waiting for water. Cooler temperatures were putting an earlier end to the growing season. Fields had been overplanted, forests stripped of wood. Crops were failing as people reverted from agriculture to hunting and gathering and fighting violently over food.

Chaco Canyon and Mesa Verde — these grand stone settlements fell silent, repurposed centuries later as national parks and monuments, memorials to the repercussions of ancient climate change.

There are many theories seeking to explain the abandonment, abstracted from faint clues in old rocks and bones and in the patterns of tree rings and pollen deposition. By some measures, there was enough water, just barely, for the Anasazi settlements to hang on. And there is evidence that they had survived drier times. A more complex story has emerged as archaeologists try to infer what they can from changes in architectural styles and pottery design — hints perhaps of a people trying out new rituals, new ways to entreat suddenly indifferent gods.

Something was happening — a slow horror, perhaps so slow that it didn’t feel like a horror, until the Anasazi’s culture began to unwind. Did their leaders engage at first in denial and then quiet deliberation? When that failed, did communities split into factions with the conservatives insisting on standing their ground — clinging to the old ways and waiting for the rains to return — and the liberals pushing for new approaches? Did a visionary arise? Some Moses leading a migration? Or three Moseses leading migrations in different directions?

One way or the other, the Anasazi disintegrated, the people moving southward. Their descendants are believed to live now in the pueblos of New Mexico and Arizona, perched on mesa tops and hugging the banks of the Rio Grande.

In modern times, many of these pueblos divide themselves, for reasons they keep from the anthropologists, into kinship groups called summer and winter people or squash and turquoise people. Could these divisions be imprints left from that 13th-century upheaval?

It is frustrating how little is known. Compared with the Byzantines, the Normans, or the Mongols, the Anasazi left such faint traces, like ripples from the radiation of their own Big Bang. They have an oral history but it is mostly secret. And there is only so much that can be derived from mythology. The closest we have to records are the crude rock etchings called petroglyphs. Were these symbols in a rudimentary language or just doodling?

Our own deliberations — imprinted onto electromagnetic waves — have been pulsing outward from Earth since the first radio news shows in the 1920s and 30s, interspersed with the “Grand Ole Opry” and the “Amos ’n’ Andy” show.

By now broadcasts about greenhouses gases, melting ice caps and rising sea levels are rippling far beyond Alpha Centauri, along with the carefully calculated outrage of Rush Limbaugh and Glenn Beck. As the waves travel farther, they converge asymptotically toward a vanishing point. Even at their strongest they might seem as esoteric to curious aliens as Anasazi rock art.

Our later emanations, if they are ever understood, might tell of great feats of geoengineering: swarms of orbiting mirrors to bounce back sunlight, oceans fertilized to create carbon-absorbing algae blooms.

The Anasazi had to make do with simpler technology — water catchment basins, irrigation channels. But when all else failed at least they had somewhere to go.

Stuck here on Earth, do we embrace the Anthropocene — this new geological epoch in which the human race has become its own force of nature? Or do we hunker down for the sixth extinction? Faced with the dilemma, we cleave as naturally as a crystal into factions, like the squash people and the pumpkin people.

Diane Ackerman is one of the latest to join the environmental optimists, who believe that the same kind of technological prowess that got us into this mess will help us adapt to it, in ways we can only begin to imagine. (Her new book, “The Human Age: The World Shaped by Us” is reviewed on Page 5.)

With her following, Ms. Ackerman may become the counterpart to Bill McKibben, the environmentalist whose book “Eaarth” (he changed the name of the planet since we have irremediably transformed the place) called for a return to simpler times with backyard farms instead of lawns and decentralized green energy. The Anasazi with solar panels on the roof.

Finally there is the 25 percent of Americans (“cool skeptics,” as a Gallup poll called them) who don’t believe the keepers of the models — the interpreters of the signs. As we flail we are generating so much data that future archaeologists, if they exist, may be overwhelmed — the opposite problem presented by the Anasazi.

More than 700 years after their fall, we have the knowledge to tell us what is going wrong this time with the atmosphere. But that has made it no easier to agree on a plan. Science can only lay the case out on the table. For all our supercomputers and climatological models, what happens next will come down to something unpredictable: the meteorology of the human mind.

Global Warming’s Terrifying New Math (Rolling Stone)

Three simple numbers that add up to global catastrophe – and that make clear who the real enemy is

reckoning illo
Illustration by Edel Rodriguez
BY | July 19, 2012

If the pictures of those towering wildfires in Colorado haven’t convinced you, or the size of your AC bill this summer, here are some hard numbers about climate change: June broke or tied 3,215 high-temperature records across the United States. That followed the warmest May on record for the Northern Hemisphere – the 327th consecutive month in which the temperature of the entire globe exceeded the 20th-century average, the odds of which occurring by simple chance were 3.7 x 10-99, a number considerably larger than the number of stars in the universe.

Meteorologists reported that this spring was the warmest ever recorded for our nation – in fact, it crushed the old record by so much that it represented the “largest temperature departure from average of any season on record.” The same week, Saudi authorities reported that it had rained in Mecca despite a temperature of 109 degrees, the hottest downpour in the planet’s history.

Not that our leaders seemed to notice. Last month the world’s nations, meeting in Rio for the 20th-anniversary reprise of a massive 1992 environmental summit, accomplished nothing. Unlike George H.W. Bush, who flew in for the first conclave, Barack Obama didn’t even attend. It was “a ghost of the glad, confident meeting 20 years ago,” the British journalist George Monbiot wrote; no one paid it much attention, footsteps echoing through the halls “once thronged by multitudes.” Since I wrote one of the first books for a general audience about global warming way back in 1989, and since I’ve spent the intervening decades working ineffectively to slow that warming, I can say with some confidence that we’re losing the fight, badly and quickly – losing it because, most of all, we remain in denial about the peril that human civilization is in.

When we think about global warming at all, the arguments tend to be ideological, theological and economic. But to grasp the seriousness of our predicament, you just need to do a little math. For the past year, an easy and powerful bit of arithmetical analysis first published by financial analysts in the U.K. has been making the rounds of environmental conferences and journals, but it hasn’t yet broken through to the larger public. This analysis upends most of the conventional political thinking about climate change. And it allows us to understand our precarious – our almost-but-not-quite-finally hopeless – position with three simple numbers.

The First Number: 2° Celsius

If the movie had ended in Hollywood fashion, the Copenhagen climate conference in 2009 would have marked the culmination of the global fight to slow a changing climate. The world’s nations had gathered in the December gloom of the Danish capital for what a leading climate economist, Sir Nicholas Stern of Britain, called the “most important gathering since the Second World War, given what is at stake.” As Danish energy minister Connie Hedegaard, who presided over the conference, declared at the time: “This is our chance. If we miss it, it could take years before we get a new and better one. If ever.”

In the event, of course, we missed it. Copenhagen failed spectacularly. Neither China nor the United States, which between them are responsible for 40 percent of global carbon emissions, was prepared to offer dramatic concessions, and so the conference drifted aimlessly for two weeks until world leaders jetted in for the final day. Amid considerable chaos, President Obama took the lead in drafting a face-saving “Copenhagen Accord” that fooled very few. Its purely voluntary agreements committed no one to anything, and even if countries signaled their intentions to cut carbon emissions, there was no enforcement mechanism. “Copenhagen is a crime scene tonight,” an angry Greenpeace official declared, “with the guilty men and women fleeing to the airport.” Headline writers were equally brutal: COPENHAGEN: THE MUNICH OF OUR TIMES? asked one.

The accord did contain one important number, however. In Paragraph 1, it formally recognized “the scientific view that the increase in global temperature should be below two degrees Celsius.” And in the very next paragraph, it declared that “we agree that deep cuts in global emissions are required… so as to hold the increase in global temperature below two degrees Celsius.” By insisting on two degrees – about 3.6 degrees Fahrenheit – the accord ratified positions taken earlier in 2009 by the G8, and the so-called Major Economies Forum. It was as conventional as conventional wisdom gets. The number first gained prominence, in fact, at a 1995 climate conference chaired by Angela Merkel, then the German minister of the environment and now the center-right chancellor of the nation.

Some context: So far, we’ve raised the average temperature of the planet just under 0.8 degrees Celsius, and that has caused far more damage than most scientists expected. (A third of summer sea ice in the Arctic is gone, the oceans are 30 percent more acidic, and since warm air holds more water vapor than cold, the atmosphere over the oceans is a shocking five percent wetter, loading the dice for devastating floods.) Given those impacts, in fact, many scientists have come to think that two degrees is far too lenient a target. “Any number much above one degree involves a gamble,” writes Kerry Emanuel of MIT, a leading authority on hurricanes, “and the odds become less and less favorable as the temperature goes up.” Thomas Lovejoy, once the World Bank’s chief biodiversity adviser, puts it like this: “If we’re seeing what we’re seeing today at 0.8 degrees Celsius, two degrees is simply too much.” NASA scientist James Hansen, the planet’s most prominent climatologist, is even blunter: “The target that has been talked about in international negotiations for two degrees of warming is actually a prescription for long-term disaster.” At the Copenhagen summit, a spokesman for small island nations warned that many would not survive a two-degree rise: “Some countries will flat-out disappear.” When delegates from developing nations were warned that two degrees would represent a “suicide pact” for drought-stricken Africa, many of them started chanting, “One degree, one Africa.”

Despite such well-founded misgivings, political realism bested scientific data, and the world settled on the two-degree target – indeed, it’s fair to say that it’s the only thing about climate change the world has settled on. All told, 167 countries responsible for more than 87 percent of the world’s carbon emissions have signed on to the Copenhagen Accord, endorsing the two-degree target. Only a few dozen countries have rejected it, including Kuwait, Nicaragua and Venezuela. Even the United Arab Emirates, which makes most of its money exporting oil and gas, signed on. The official position of planet Earth at the moment is that we can’t raise the temperature more than two degrees Celsius – it’s become the bottomest of bottom lines. Two degrees.

The Second Number: 565 Gigatons

Scientists estimate that humans can pour roughly 565 more gigatons of carbon dioxide into the atmosphere by midcentury and still have some reasonable hope of staying below two degrees. (“Reasonable,” in this case, means four chances in five, or somewhat worse odds than playing Russian roulette with a six-shooter.)

This idea of a global “carbon budget” emerged about a decade ago, as scientists began to calculate how much oil, coal and gas could still safely be burned. Since we’ve increased the Earth’s temperature by 0.8 degrees so far, we’re currently less than halfway to the target. But, in fact, computer models calculate that even if we stopped increasing CO2 now, the temperature would likely still rise another 0.8 degrees, as previously released carbon continues to overheat the atmosphere. That means we’re already three-quarters of the way to the two-degree target.

How good are these numbers? No one is insisting that they’re exact, but few dispute that they’re generally right. The 565-gigaton figure was derived from one of the most sophisticated computer-simulation models that have been built by climate scientists around the world over the past few decades. And the number is being further confirmed by the latest climate-simulation models currently being finalized in advance of the next report by the Intergovernmental Panel on Climate Change. “Looking at them as they come in, they hardly differ at all,” says Tom Wigley, an Australian climatologist at the National Center for Atmospheric Research. “There’s maybe 40 models in the data set now, compared with 20 before. But so far the numbers are pretty much the same. We’re just fine-tuning things. I don’t think much has changed over the last decade.” William Collins, a senior climate scientist at the Lawrence Berkeley National Laboratory, agrees. “I think the results of this round of simulations will be quite similar,” he says. “We’re not getting any free lunch from additional understanding of the climate system.”

We’re not getting any free lunch from the world’s economies, either. With only a single year’s lull in 2009 at the height of the financial crisis, we’ve continued to pour record amounts of carbon into the atmosphere, year after year. In late May, the International Energy Agency published its latest figures – CO2 emissions last year rose to 31.6 gigatons, up 3.2 percent from the year before. America had a warm winter and converted more coal-fired power plants to natural gas, so its emissions fell slightly; China kept booming, so its carbon output (which recently surpassed the U.S.) rose 9.3 percent; the Japanese shut down their fleet of nukes post-Fukushima, so their emissions edged up 2.4 percent. “There have been efforts to use more renewable energy and improve energy efficiency,” said Corinne Le Quéré, who runs England’s Tyndall Centre for Climate Change Research. “But what this shows is that so far the effects have been marginal.” In fact, study after study predicts that carbon emissions will keep growing by roughly three percent a year – and at that rate, we’ll blow through our 565-gigaton allowance in 16 years, around the time today’s preschoolers will be graduating from high school. “The new data provide further evidence that the door to a two-degree trajectory is about to close,” said Fatih Birol, the IEA’s chief economist. In fact, he continued, “When I look at this data, the trend is perfectly in line with a temperature increase of about six degrees.” That’s almost 11 degrees Fahrenheit, which would create a planet straight out of science fiction.

So, new data in hand, everyone at the Rio conference renewed their ritual calls for serious international action to move us back to a two-degree trajectory. The charade will continue in November, when the next Conference of the Parties (COP) of the U.N. Framework Convention on Climate Change convenes in Qatar. This will be COP 18 – COP 1 was held in Berlin in 1995, and since then the process has accomplished essentially nothing. Even scientists, who are notoriously reluctant to speak out, are slowly overcoming their natural preference to simply provide data. “The message has been consistent for close to 30 years now,” Collins says with a wry laugh, “and we have the instrumentation and the computer power required to present the evidence in detail. If we choose to continue on our present course of action, it should be done with a full evaluation of the evidence the scientific community has presented.” He pauses, suddenly conscious of being on the record. “I should say, a fuller evaluation of the evidence.”

So far, though, such calls have had little effect. We’re in the same position we’ve been in for a quarter-century: scientific warning followed by political inaction. Among scientists speaking off the record, disgusted candor is the rule. One senior scientist told me, “You know those new cigarette packs, where governments make them put a picture of someone with a hole in their throats? Gas pumps should have something like that.”

The Third Number: 2,795 Gigatons

This number is the scariest of all – one that, for the first time, meshes the political and scientific dimensions of our dilemma. It was highlighted last summer by the Carbon Tracker Initiative, a team of London financial analysts and environmentalists who published a report in an effort to educate investors about the possible risks that climate change poses to their stock portfolios. The number describes the amount of carbon already contained in the proven coal and oil and gas reserves of the fossil-fuel companies, and the countries (think Venezuela or Kuwait) that act like fossil-fuel companies. In short, it’s the fossil fuel we’re currently planning to burn. And the key point is that this new number – 2,795 – is higher than 565. Five times higher.

The Carbon Tracker Initiative – led by James Leaton, an environmentalist who served as an adviser at the accounting giant PricewaterhouseCoopers – combed through proprietary databases to figure out how much oil, gas and coal the world’s major energy companies hold in reserve. The numbers aren’t perfect – they don’t fully reflect the recent surge in unconventional energy sources like shale gas, and they don’t accurately reflect coal reserves, which are subject to less stringent reporting requirements than oil and gas. But for the biggest companies, the figures are quite exact: If you burned everything in the inventories of Russia’s Lukoil and America’s ExxonMobil, for instance, which lead the list of oil and gas companies, each would release more than 40 gigatons of carbon dioxide into the atmosphere.

Which is exactly why this new number, 2,795 gigatons, is such a big deal. Think of two degrees Celsius as the legal drinking limit – equivalent to the 0.08 blood-alcohol level below which you might get away with driving home. The 565 gigatons is how many drinks you could have and still stay below that limit – the six beers, say, you might consume in an evening. And the 2,795 gigatons? That’s the three 12-packs the fossil-fuel industry has on the table, already opened and ready to pour.

We have five times as much oil and coal and gas on the books as climate scientists think is safe to burn. We’d have to keep 80 percent of those reserves locked away underground to avoid that fate. Before we knew those numbers, our fate had been likely. Now, barring some massive intervention, it seems certain.

Yes, this coal and gas and oil is still technically in the soil. But it’s already economically aboveground – it’s figured into share prices, companies are borrowing money against it, nations are basing their budgets on the presumed returns from their patrimony. It explains why the big fossil-fuel companies have fought so hard to prevent the regulation of carbon dioxide – those reserves are their primary asset, the holding that gives their companies their value. It’s why they’ve worked so hard these past years to figure out how to unlock the oil in Canada’s tar sands, or how to drill miles beneath the sea, or how to frack the Appalachians.

If you told Exxon or Lukoil that, in order to avoid wrecking the climate, they couldn’t pump out their reserves, the value of their companies would plummet. John Fullerton, a former managing director at JP Morgan who now runs the Capital Institute, calculates that at today’s market value, those 2,795 gigatons of carbon emissions are worth about $27 trillion. Which is to say, if you paid attention to the scientists and kept 80 percent of it underground, you’d be writing off $20 trillion in assets. The numbers aren’t exact, of course, but that carbon bubble makes the housing bubble look small by comparison. It won’t necessarily burst – we might well burn all that carbon, in which case investors will do fine. But if we do, the planet will crater. You can have a healthy fossil-fuel balance sheet, or a relatively healthy planet – but now that we know the numbers, it looks like you can’t have both. Do the math: 2,795 is five times 565. That’s how the story ends.

So far, as I said at the start, environmental efforts to tackle global warming have failed. The planet’s emissions of carbon dioxide continue to soar, especially as developing countries emulate (and supplant) the industries of the West. Even in rich countries, small reductions in emissions offer no sign of the real break with the status quo we’d need to upend the iron logic of these three numbers. Germany is one of the only big countries that has actually tried hard to change its energy mix; on one sunny Saturday in late May, that northern-latitude nation generated nearly half its power from solar panels within its borders. That’s a small miracle – and it demonstrates that we have the technology to solve our problems. But we lack the will. So far, Germany’s the exception; the rule is ever more carbon.

This record of failure means we know a lot about what strategies don’t work. Green groups, for instance, have spent a lot of time trying to change individual lifestyles: the iconic twisty light bulb has been installed by the millions, but so have a new generation of energy-sucking flatscreen TVs. Most of us are fundamentally ambivalent about going green: We like cheap flights to warm places, and we’re certainly not going to give them up if everyone else is still taking them. Since all of us are in some way the beneficiaries of cheap fossil fuel, tackling climate change has been like trying to build a movement against yourself – it’s as if the gay-rights movement had to be constructed entirely from evangelical preachers, or the abolition movement from slaveholders.

People perceive – correctly – that their individual actions will not make a decisive difference in the atmospheric concentration of CO2; by 2010, a poll found that “while recycling is widespread in America and 73 percent of those polled are paying bills online in order to save paper,” only four percent had reduced their utility use and only three percent had purchased hybrid cars. Given a hundred years, you could conceivably change lifestyles enough to matter – but time is precisely what we lack.

A more efficient method, of course, would be to work through the political system, and environmentalists have tried that, too, with the same limited success. They’ve patiently lobbied leaders, trying to convince them of our peril and assuming that politicians would heed the warnings. Sometimes it has seemed to work. Barack Obama, for instance, campaigned more aggressively about climate change than any president before him – the night he won the nomination, he told supporters that his election would mark the moment “the rise of the oceans began to slow and the planet began to heal.” And he has achieved one significant change: a steady increase in the fuel efficiency mandated for automobiles. It’s the kind of measure, adopted a quarter-century ago, that would have helped enormously. But in light of the numbers I’ve just described, it’s obviously a very small start indeed.

At this point, effective action would require actually keeping most of the carbon the fossil-fuel industry wants to burn safely in the soil, not just changing slightly the speed at which it’s burned. And there the president, apparently haunted by the still-echoing cry of “Drill, baby, drill,” has gone out of his way to frack and mine. His secretary of interior, for instance, opened up a huge swath of the Powder River Basin in Wyoming for coal extraction: The total basin contains some 67.5 gigatons worth of carbon (or more than 10 percent of the available atmospheric space). He’s doing the same thing with Arctic and offshore drilling; in fact, as he explained on the stump in March, “You have my word that we will keep drilling everywhere we can… That’s a commitment that I make.” The next day, in a yard full of oil pipe in Cushing, Oklahoma, the president promised to work on wind and solar energy but, at the same time, to speed up fossil-fuel development: “Producing more oil and gas here at home has been, and will continue to be, a critical part of an all-of-the-above energy strategy.” That is, he’s committed to finding even more stock to add to the 2,795-gigaton inventory of unburned carbon.

Sometimes the irony is almost Borat-scale obvious: In early June, Secretary of State Hillary Clinton traveled on a Norwegian research trawler to see firsthand the growing damage from climate change. “Many of the predictions about warming in the Arctic are being surpassed by the actual data,” she said, describing the sight as “sobering.” But the discussions she traveled to Scandinavia to have with other foreign ministers were mostly about how to make sure Western nations get their share of the estimated $9 trillion in oil (that’s more than 90 billion barrels, or 37 gigatons of carbon) that will become accessible as the Arctic ice melts. Last month, the Obama administration indicated that it would give Shell permission to start drilling in sections of the Arctic.

Almost every government with deposits of hydrocarbons straddles the same divide. Canada, for instance, is a liberal democracy renowned for its internationalism – no wonder, then, that it signed on to the Kyoto treaty, promising to cut its carbon emissions substantially by 2012. But the rising price of oil suddenly made the tar sands of Alberta economically attractive – and since, as NASA climatologist James Hansen pointed out in May, they contain as much as 240 gigatons of carbon (or almost half of the available space if we take the 565 limit seriously), that meant Canada’s commitment to Kyoto was nonsense. In December, the Canadian government withdrew from the treaty before it faced fines for failing to meet its commitments.

The same kind of hypocrisy applies across the ideological board: In his speech to the Copenhagen conference, Venezuela’s Hugo Chavez quoted Rosa Luxemburg, Jean-Jacques Rousseau and “Christ the Redeemer,” insisting that “climate change is undoubtedly the most devastating environmental problem of this century.” But the next spring, in the Simon Bolivar Hall of the state-run oil company, he signed an agreement with a consortium of international players to develop the vast Orinoco tar sands as “the most significant engine for a comprehensive development of the entire territory and Venezuelan population.” The Orinoco deposits are larger than Alberta’s – taken together, they’d fill up the whole available atmospheric space.

So: the paths we have tried to tackle global warming have so far produced only gradual, halting shifts. A rapid, transformative change would require building a movement, and movements require enemies. As John F. Kennedy put it, “The civil rights movement should thank God for Bull Connor. He’s helped it as much as Abraham Lincoln.” And enemies are what climate change has lacked.

But what all these climate numbers make painfully, usefully clear is that the planet does indeed have an enemy – one far more committed to action than governments or individuals. Given this hard math, we need to view the fossil-fuel industry in a new light. It has become a rogue industry, reckless like no other force on Earth. It is Public Enemy Number One to the survival of our planetary civilization. “Lots of companies do rotten things in the course of their business – pay terrible wages, make people work in sweatshops – and we pressure them to change those practices,” says veteran anti-corporate leader Naomi Klein, who is at work on a book about the climate crisis. “But these numbers make clear that with the fossil-fuel industry, wrecking the planet is their business model. It’s what they do.”

According to the Carbon Tracker report, if Exxon burns its current reserves, it would use up more than seven percent of the available atmospheric space between us and the risk of two degrees. BP is just behind, followed by the Russian firm Gazprom, then Chevron, ConocoPhillips and Shell, each of which would fill between three and four percent. Taken together, just these six firms, of the 200 listed in the Carbon Tracker report, would use up more than a quarter of the remaining two-degree budget. Severstal, the Russian mining giant, leads the list of coal companies, followed by firms like BHP Billiton and Peabody. The numbers are simply staggering – this industry, and this industry alone, holds the power to change the physics and chemistry of our planet, and they’re planning to use it.

They’re clearly cognizant of global warming – they employ some of the world’s best scientists, after all, and they’re bidding on all those oil leases made possible by the staggering melt of Arctic ice. And yet they relentlessly search for more hydrocarbons – in early March, Exxon CEO Rex Tillerson told Wall Street analysts that the company plans to spend $37 billion a year through 2016 (about $100 million a day) searching for yet more oil and gas.

There’s not a more reckless man on the planet than Tillerson. Late last month, on the same day the Colorado fires reached their height, he told a New York audience that global warming is real, but dismissed it as an “engineering problem” that has “engineering solutions.” Such as? “Changes to weather patterns that move crop-production areas around – we’ll adapt to that.” This in a week when Kentucky farmers were reporting that corn kernels were “aborting” in record heat, threatening a spike in global food prices. “The fear factor that people want to throw out there to say, ‘We just have to stop this,’ I do not accept,” Tillerson said. Of course not – if he did accept it, he’d have to keep his reserves in the ground. Which would cost him money. It’s not an engineering problem, in other words – it’s a greed problem.

You could argue that this is simply in the nature of these companies – that having found a profitable vein, they’re compelled to keep mining it, more like efficient automatons than people with free will. But as the Supreme Court has made clear, they are people of a sort. In fact, thanks to the size of its bankroll, the fossil-fuel industry has far more free will than the rest of us. These companies don’t simply exist in a world whose hungers they fulfill – they help create the boundaries of that world.

Left to our own devices, citizens might decide to regulate carbon and stop short of the brink; according to a recent poll, nearly two-thirds of Americans would back an international agreement that cut carbon emissions 90 percent by 2050. But we aren’t left to our own devices. The Koch brothers, for instance, have a combined wealth of $50 billion, meaning they trail only Bill Gates on the list of richest Americans. They’ve made most of their money in hydrocarbons, they know any system to regulate carbon would cut those profits, and they reportedly plan to lavish as much as $200 million on this year’s elections. In 2009, for the first time, the U.S. Chamber of Commerce surpassed both the Republican and Democratic National Committees on political spending; the following year, more than 90 percent of the Chamber’s cash went to GOP candidates, many of whom deny the existence of global warming. Not long ago, the Chamber even filed a brief with the EPA urging the agency not to regulate carbon – should the world’s scientists turn out to be right and the planet heats up, the Chamber advised, “populations can acclimatize to warmer climates via a range of behavioral, physiological and technological adaptations.” As radical goes, demanding that we change our physiology seems right up there.

Environmentalists, understandably, have been loath to make the fossil-fuel industry their enemy, respecting its political power and hoping instead to convince these giants that they should turn away from coal, oil and gas and transform themselves more broadly into “energy companies.” Sometimes that strategy appeared to be working – emphasis on appeared. Around the turn of the century, for instance, BP made a brief attempt to restyle itself as “Beyond Petroleum,” adapting a logo that looked like the sun and sticking solar panels on some of its gas stations. But its investments in alternative energy were never more than a tiny fraction of its budget for hydrocarbon exploration, and after a few years, many of those were wound down as new CEOs insisted on returning to the company’s “core business.” In December, BP finally closed its solar division. Shell shut down its solar and wind efforts in 2009. The five biggest oil companies have made more than $1 trillion in profits since the millennium – there’s simply too much money to be made on oil and gas and coal to go chasing after zephyrs and sunbeams.

Much of that profit stems from a single historical accident: Alone among businesses, the fossil-fuel industry is allowed to dump its main waste, carbon dioxide, for free. Nobody else gets that break – if you own a restaurant, you have to pay someone to cart away your trash, since piling it in the street would breed rats. But the fossil-fuel industry is different, and for sound historical reasons: Until a quarter-century ago, almost no one knew that CO2 was dangerous. But now that we understand that carbon is heating the planet and acidifying the oceans, its price becomes the central issue.

If you put a price on carbon, through a direct tax or other methods, it would enlist markets in the fight against global warming. Once Exxon has to pay for the damage its carbon is doing to the atmosphere, the price of its products would rise. Consumers would get a strong signal to use less fossil fuel – every time they stopped at the pump, they’d be reminded that you don’t need a semimilitary vehicle to go to the grocery store. The economic playing field would now be a level one for nonpolluting energy sources. And you could do it all without bankrupting citizens – a so-called “fee-and-dividend” scheme would put a hefty tax on coal and gas and oil, then simply divide up the proceeds, sending everyone in the country a check each month for their share of the added costs of carbon. By switching to cleaner energy sources, most people would actually come out ahead.

There’s only one problem: Putting a price on carbon would reduce the profitability of the fossil-fuel industry. After all, the answer to the question “How high should the price of carbon be?” is “High enough to keep those carbon reserves that would take us past two degrees safely in the ground.” The higher the price on carbon, the more of those reserves would be worthless. The fight, in the end, is about whether the industry will succeed in its fight to keep its special pollution break alive past the point of climate catastrophe, or whether, in the economists’ parlance, we’ll make them internalize those externalities.

It’s not clear, of course, that the power of the fossil-fuel industry can be broken. The U.K. analysts who wrote the Carbon Tracker report and drew attention to these numbers had a relatively modest goal – they simply wanted to remind investors that climate change poses a very real risk to the stock prices of energy companies. Say something so big finally happens (a giant hurricane swamps Manhattan, a megadrought wipes out Midwest agriculture) that even the political power of the industry is inadequate to restrain legislators, who manage to regulate carbon. Suddenly those Chevron reserves would be a lot less valuable, and the stock would tank. Given that risk, the Carbon Tracker report warned investors to lessen their exposure, hedge it with some big plays in alternative energy.

“The regular process of economic evolution is that businesses are left with stranded assets all the time,” says Nick Robins, who runs HSBC’s Climate Change Centre. “Think of film cameras, or typewriters. The question is not whether this will happen. It will. Pension systems have been hit by the dot-com and credit crunch. They’ll be hit by this.” Still, it hasn’t been easy to convince investors, who have shared in the oil industry’s record profits. “The reason you get bubbles,” sighs Leaton, “is that everyone thinks they’re the best analyst – that they’ll go to the edge of the cliff and then jump back when everyone else goes over.”

So pure self-interest probably won’t spark a transformative challenge to fossil fuel. But moral outrage just might – and that’s the real meaning of this new math. It could, plausibly, give rise to a real movement.

Once, in recent corporate history, anger forced an industry to make basic changes. That was the campaign in the 1980s demanding divestment from companies doing business in South Africa. It rose first on college campuses and then spread to municipal and state governments; 155 campuses eventually divested, and by the end of the decade, more than 80 cities, 25 states and 19 counties had taken some form of binding economic action against companies connected to the apartheid regime. “The end of apartheid stands as one of the crowning accomplishments of the past century,” as Archbishop Desmond Tutu put it, “but we would not have succeeded without the help of international pressure,” especially from “the divestment movement of the 1980s.”

The fossil-fuel industry is obviously a tougher opponent, and even if you could force the hand of particular companies, you’d still have to figure out a strategy for dealing with all the sovereign nations that, in effect, act as fossil-fuel companies. But the link for college students is even more obvious in this case. If their college’s endowment portfolio has fossil-fuel stock, then their educations are being subsidized by investments that guarantee they won’t have much of a planet on which to make use of their degree. (The same logic applies to the world’s largest investors, pension funds, which are also theoretically interested in the future – that’s when their members will “enjoy their retirement.”) “Given the severity of the climate crisis, a comparable demand that our institutions dump stock from companies that are destroying the planet would not only be appropriate but effective,” says Bob Massie, a former anti-apartheid activist who helped found the Investor Network on Climate Risk. “The message is simple: We have had enough. We must sever the ties with those who profit from climate change – now.”

Movements rarely have predictable outcomes. But any campaign that weakens the fossil-fuel industry’s political standing clearly increases the chances of retiring its special breaks. Consider President Obama’s signal achievement in the climate fight, the large increase he won in mileage requirements for cars. Scientists, environmentalists and engineers had advocated such policies for decades, but until Detroit came under severe financial pressure, it was politically powerful enough to fend them off. If people come to understand the cold, mathematical truth – that the fossil-fuel industry is systematically undermining the planet’s physical systems – it might weaken it enough to matter politically. Exxon and their ilk might drop their opposition to a fee-and-dividend solution; they might even decide to become true energy companies, this time for real.

Even if such a campaign is possible, however, we may have waited too long to start it. To make a real difference – to keep us under a temperature increase of two degrees – you’d need to change carbon pricing in Washington, and then use that victory to leverage similar shifts around the world. At this point, what happens in the U.S. is most important for how it will influence China and India, where emissions are growing fastest. (In early June, researchers concluded that China has probably under-reported its emissions by up to 20 percent.) The three numbers I’ve described are daunting – they may define an essentially impossible future. But at least they provide intellectual clarity about the greatest challenge humans have ever faced. We know how much we can burn, and we know who’s planning to burn more. Climate change operates on a geological scale and time frame, but it’s not an impersonal force of nature; the more carefully you do the math, the more thoroughly you realize that this is, at bottom, a moral issue; we have met the enemy and they is Shell.

Meanwhile the tide of numbers continues. The week after the Rio conference limped to its conclusion, Arctic sea ice hit the lowest level ever recorded for that date. Last month, on a single weekend, Tropical Storm Debby dumped more than 20 inches of rain on Florida – the earliest the season’s fourth-named cyclone has ever arrived. At the same time, the largest fire in New Mexico history burned on, and the most destructive fire in Colorado’s annals claimed 346 homes in Colorado Springs – breaking a record set the week before in Fort Collins. This month, scientists issued a new study concluding that global warming has dramatically increased the likelihood of severe heat and drought – days after a heat wave across the Plains and Midwest broke records that had stood since the Dust Bowl, threatening this year’s harvest. You want a big number? In the course of this month, a quadrillion kernels of corn need to pollinate across the grain belt, something they can’t do if temperatures remain off the charts. Just like us, our crops are adapted to the Holocene, the 11,000-year period of climatic stability we’re now leaving… in the dust.

This story is from the August 2nd, 2012 issue of Rolling Stone.

Read more: http://www.rollingstone.com/politics/news/global-warmings-terrifying-new-math-20120719#ixzz3DcnjPUtj
Follow us: @rollingstone on Twitter | RollingStone on Facebook

Climate Change News – September 16, 2014 (DISCCRS)

NEWS

UN says CO2 pollution levels at annual record high – Associated Press – September 9, 2014 – http://bigstory.ap.org/article/un-says-co2-pollution-levels-annual-record-high

Greenhouse Gas Pollution Sees Fastest Rise – ClimateWire (via Scientific American) – September 9, 2014 – http://www.scientificamerican.com/article/greenhouse-gas-pollution-sees-fastest-rise/

NASA Ranks This August as Warmest on Record – Climate Central – September 15, 2014 – http://www.climatecentral.org/news/nasa-globe-warmest-august-18031

Study finds warming Atlantic temperatures could increase range of invasive species – NOAA Press Release (via AAAS EurekAlert) – September 15, 2014 – http://www.eurekalert.org/pub_releases/2014-09/nh-sfw091214.php

Has the great climate change migration already begun? – Vital Signs (Guardian) – September 15, 2014 – http://www.theguardian.com/vital-signs/2014/sep/15/climate-change-refugees-un-storms-natural-disasters-sea-levels-environment

Grassroots pressure needed to beat climate change and poverty – experts – Thomson Reuters Foundation – September 12, 2014 – http://www.trust.org/item/20140912161513-2y17m/?source=fiOtherNews3

Princeton University launches NSF-funded initiative to study Southern Ocean’s role in global systems – NSF Press Release 14-117 – September 9, 2014 – http://www.nsf.gov/news/news_summ.jsp?cntn_id=132638&WT.mc_id=USNSF_51&WT.mc_ev=click

Warmer air caused ice shelf collapse off Antarctica – Reuters – September 11, 2014 – http://www.reuters.com/article/2014/09/11/us-climatechange-antarctica-idUSKBN0H625T20140911

Illegal deforestation is growing problem for climate – Climate News Network – September 12, 2014 – http://www.climatenewsnetwork.net/2014/09/illegal-deforestation-is-growing-problem-for-climate/

Brazil confirms Amazon deforestation sped up in 2013 – Reuters – September 10, 2014 – http://www.reuters.com/article/2014/09/10/us-brazil-deforestation-rise-idUSKBN0H528V20140910

Climate Change Threatens Half of North America?s Birds – Climate Central – September 13, 2014 – http://www.climatecentral.org/news/north-americas-birds-climate-change-18023

Ozone Layer on Track to Recovery – United Nations Environment Programme/World Meteorological Organization Press Release – September 10, 2014 – http://montreal-protocol.org/Assessment_Panels/SAP/SAP2014_ADM_Press_Release_10-Sept-2014.pdf

FORUM

Water management in Iran: what is causing the looming crisis? – Journal of Environmental Studies and Sciences (via Springer) – August 23, 2014 – By Kaveh Madani – http://link.springer.com/article/10.1007%2Fs13412-014-0182-z

Moral Collapse in a Warming World – Ethics & International Affairs, 28, no. 3 (2014), pp. 335-342 – By Clive Hamilton – http://journals.cambridge.org/download.php?file=%2FEIA%2FEIA28_03%2FS0892679414000409a.pdf&code=f0a65c732192dd3bbb451e4f5abcf862

The 97% v the 3% ? just how much global warming are humans causing? – Climate Consensus – the 97% blog (Guardian) – September 15, 2014 – By Dana Nuccitelli – http://www.theguardian.com/environment/climate-consensus-97-per-cent/2014/sep/15/97-vs-3-how-much-global-warming-are-humans-causing

UN Climate Summit must show climate change action is in everyone’s interests – Guardian Professional – September 11, 2014 – By Simon Zadek and Nick Robins – http://www.theguardian.com/sustainable-business/2014/sep/11/un-climate-summit-climate-change-interests-business-governments-finance

The Guardian view on the unchanging message from climate scientists – Guardian Editorial – September 14, 2014 – http://www.theguardian.com/commentisfree/2014/sep/14/guardian-view-unchanging-message-climate-scientists

Can Humans Get Used to Having a Two-Way Relationship with Earth?s Climate? – Dot Earth blog (New York Times) – September 10, 2014 – By Andrew Revkin – http://dotearth.blogs.nytimes.com/2014/09/10/can-humans-get-used-to-having-a-two-way-relationship-with-earths-climate/?_php=true

Naomi Klein: ?We tried it your way and we don?t have another decade to waste? – Guardian – September 14, 2014 – By Suzanne Goldenberg – http://www.theguardian.com/books/2014/sep/14/naomi-klein-interview-capitalism-vs-the-climate

Nasa-funded study warns of ‘collapse of civilisation’ in coming decades (Independent)

‘Business as usual’ approach of economic elite will lead society to disaster, scientists warn

ADAM WITHNALL

Sunday 16 March 2014

Modern civilisation is heading for collapse within a matter of decades because of growing economic instability and pressure on the planet’s resources, according to a scientific study funded by Nasa.

Using theoretical models to predict what will happen to the industrialised world over the course of the next century or so, mathematicians found that even with conservative estimates things started to go very badly, very quickly.

Referring to the past collapses of often very sophisticated civilisations – the Roman, Han and Gupta Empires for example – the study noted that the elite of society have often pushed for a “business as usual” approach to warnings of disaster until it is too late.

In the report based on his “Human And Nature Dynamical” (Handy) model, the applied mathematician Safa Motesharri wrote: “the process of rise-and-collapse is actually a recurrent cycle found throughout history”.

His research, carried out with the help of a team of natural and social scientists and with funding from Nasa’s Goddard Space Flight Center, has been accepted for publication in the Ecological Economics journal, the Guardian reported.

Motesharri explored the factors which could lead to the collapse of civilisation, from population growth to climate change, and found that when these converge they can cause society to break down because of the “stretching of resources” and “the economic stratification of society into ‘Elites’ and ‘Masses’”.

Using his Handy model to assess a scenario closely resembling the current state of the world, Motesharri found that civilisation “appears to be on a sustainable path for quite a long time, but even using an optimal depletion rate and starting with a very small number of Elites, the Elites eventually consume too much, resulting in a famine among the Masses that eventually causes the collapse of society”.

The report stressed, however, that the worst-case scenario of collapse is not inevitable, and called on action now from the so-called real world “Elites” to restore economic balance.

“Collapse can be avoided and population can reach equilibrium if the per capita rate of depletion of nature is reduced to a sustainable level, and if resources are distributed in a reasonably equitable fashion,” the scientists said.

This is not the first time scientists have tried to warn us of potentially impending global disaster. Last year it emerged that Stephen Hawking and a team of Britain’s finest minds are drawing up a “doomsday list” of the catastrophic low-risk (but high-impact) events that could devastate the world.

Ciência a serviço da exploração da natureza e dos trabalhadores (Portal do Meio Ambiente)

PUBLICADO 30 JULHO 2014.

Mesa: A destruição tem preço? Pode-se confiar nas garantias da Ciência? Exploração petroleira (de Yasuni a Coari / Juruá); Mineração (de Carajás a Madre de Dios). Lindomar Padilha (CIMI); Barbara Silva (militante da comunicação comunitária na Pan Amazônia), Raimundo G. Neto (CEPASP/Movimento dos Atingidos por Mineração); Simeon Velarde (Vanguardia Amazónica-Peru), Ana Patrícia (COMIN)

Na manhã do dia 24 de julho, ocorreu a mesa com o tema “A destruição tem preço? Pode-se confiar nas garantias da Ciência? Exploração petroleira (de Yasuni a Coari / Juruá); Mineração (de Carajás a Madre de Dios).”

Barbara Silva, militante da comunicação comunitária na Pan-Amazônia, destacou a ação da Petrobrás na Amazônia Equatoriana e seus impactos na floresta e em comunidades equatorianas: “A Petrobrás age em outros países de um modo diferente. Ela faz no Equador, Bolívia e Colômbia o que ela não faz no Brasil: invade terras indígenas, frauda laudos técnicos, contamina água e solos, afetando a saúde e a economia de populações inteiras” .

Barbara Silva (militante da comunicação comunitária na Pan-Amazônia)

Silva ainda nos convoca a pensar a relação homem e natureza a partir de um termo que vai além da ideia de cuidar da natureza: “A austeridade imprime uma ação sobre o cuidado que é necessário a natureza. Pensar sobre o que queremos para a região amazônica é pensar no modo que vivemos. Consumir menos é uma ação individual que reflete nossa ação de cuidado com a natureza”, finalizou.

“Precisamos avançar é na ‘perda de inocência’, o Estado Brasileiro não é a favor do povo trabalhadores brasileiro, nem ontem, nem hoje.”, aponta Raimundo Neto (CEPASP/Movimento dos Atingidos por Mineração), após realizar um panorama das políticas e projetos de mineração no Pará.

Lindomar Padilha (CIMI); Simeon Velarde (Vanguardia Amazónica-Peru), Ana Patrícia (COMIN)

Simeon Velarde, da Vanguardia Amazónica-Peru, diz que a empresa petroleira Pluspetrol contamina os rios da amazônia peruana, mas diz que é de forma responsável. “O Peru é rico em matéria primas, em petróleo, gás, minério e essa realidade produz um crescimento econômico interessante para o país, mas esse crescimento não se redistribui socialmente. Eles dizem que vão fazer escolas, programas de inclusão de jovens, mas isso não acontece. O presidente vai aos meios de comunicações para defender essas empresas, pois com elas o país terá mais desenvolvimento, e segue mentindo à população”.

Fotos: Talita Oliveira

Fonte: ADUFAC.

Sudeste, rumo à desertificação (Envolverde)

29/7/2014 – 12h08

por Julio Ottoboni*

secawiki 300x204 Sudeste, rumo à desertificação

O sudeste do Brasil, parte da região central e do sul caminham para se tornar desérticas. A seca registrada este ano na porção centro-sul, principalmente em São Paulo, está ligada a permanente e acelerada degradação da floresta amazônica. O transporte de umidade para as partes mais ao sul do continente está sendo comprometida, pois além de sua diminuição é trazido partículas geradas nos processos de queimadas que impedem a formação de chuvas.

Os cientistas do (Instituto Nacional de Pesquisas Espaciais (Inpe) e do Instituto de Pesquisas da Amazônia (Inpa) há mais de uma década fizeram esse alerta, que a cada ano está pior e mais grave. E coloca em confronto o modelo econômico agropecuário, baseado em commodities, com a área mais industrializada, produtiva e rica do país. E também a mais urbanizada e detentora de 45% da população brasileira e abrigada em apenas 10,5% do território nacional.

O cientista e doutor em meteorologia do Inpe, Gilvam Sampaio de Oliveira, a situação é preocupante e bem mais grave do imaginado em relação a eventos extremos. A comunidade científica está surpresa com a dinâmica das alterações do clima. O número de desastres naturais vem crescendo. Entre 1940 e 2009 houve uma curva ascendente de inundações e o número de dias frios, principalmente em São Paulo, está em franca decadência.

“As questões que já estamos passando, como essa seca, eram projetadas para daqui há 15 ou 20 anos. A área de altas temperaturas está aumentando em toda América do Sul. Em São Paulo e São José dos Campos, por exemplo, há um aumento de chuvas com mais de 100 milímetros concentradas e períodos maiores sem precipitação alguma. E quanto mais seca a região, aumenta o efeito estufa e diminui a possibilidade de chuvas”, alertou o cientista.

O sistema principal formador do ciclo natural que abastece a pluviometria do sudeste começa com a massa de ar quente repleta de umidade, formada na bacia do Amazonas, seguindo até os Andes. Com a barreira natural, ela retorna para a porção sul continental, o que decreta o regime de chuvas.

A revista científica Nature publicou em 2012 um estudo inglês da Universidade de Leeds. O artigo apresentou o resultado de um estudo no qual os mais de 600 mil quilômetros quadrados de floresta amazônica perdidos desde a década de 1970, e com o avanço do desmatamento seguido de queimadas cerca de 40% de todo complexo natural, estará extinto até 2050. Isso comprometerá o regime de chuvas, que seriam reduzidas em mais de 20% nos períodos de seca.

Faixa dos desertos

O sudeste brasileiro está na faixa dos desertos existente no hemisfério sul do planeta. Ela atravessa enormes áreas continentais, como os desertos australianos de Great Sendy, Gibson e Great Victoria, na plataforma africana surgem as áreas desertificadas da Namíbia e do Kalahari e na América do Sul, o do Atacama. Sem qualquer coincidência, ambos desertos africanos, inclusive em expansão, estão alinhados frontalmente, dentro das margens latitudinais, com as regiões dos Estados do Sudeste e do Sul do país.

Essa porção territorial só se viu livre da desertificação com o êxito da Amazônia e a formação da Mata Atlântica. Ambas foram determinantes para se criar um regime de chuvas que mantiveram essas partes do Brasil e da América do Sul com solos férteis e índices pluviométricos mais que satisfatórios à manutenção da vida.

O geólogo do Inpe  e assessor da Agência Espacial Brasileira (AEB), Paulo Roberto Martini,  tem sua teoria para esse fenômeno. Na qual a desertificação destas regiões ocorrerá se o transporte de ar úmido for bloqueado ou escasseado, por ação natural ou antrópica. Exatamente o que vem acontecendo. As investigações geomorfológicas já mostraram que entre os anos 1000 e 1300 houveram secas generalizadas e populações inteiras desaparecerem nas Américas. E isto pode ocorrer novamente, agora potencializado pela devastação causada pelo homem.

“Esse solo da região Sul e Sudeste tem potencial enorme para se tornar deserto, basta não chover regularmente. A distribuição da umidade evitou que essa região da América do Sul fosse transformada num imenso deserto”, explicou Martini.

Segundo o pesquisador, no fim do período glacial, por volta de 12 mil anos, a cobertura do Brasil teria sido predominantemente de savana, como na África, pobre em diversidade e formada por gramíneas e poucas espécies arbóreas. O que ainda é encontrado no interior de São Paulo, Minas Gerais, Espírito Santo e no Mato Grosso. Entretanto, a umidade oceânica associada à amazônica possibilitou a constituição da Mata Atlântica e seu ingresso continente adentro.

A penetração da flora em áreas de campo realimentou o ciclo das chuvas, nível de umidade das áreas ocupadas e a fertilização do solo. Em milhares de anos formou-se um vasto complexo florestal, atualmente reduzido a menos de 5% de seu tamanho original na época do descobrimento.

“Há uma cultura de degradação e falar em restauração das matas no Brasil é ficção. Só se produz água quando se faz floresta, a sociedade tem que reagir a isso”, observou o dirigente da entidade SOS Mata Atlântica, Mário Mantovani.

As pesquisas mostram que o povoamento vegetal no que é hoje o território brasileiro teria começado pela costa do Oceano Atlântico, seguindo para o interior ao longo das várzeas dos rios, onde se encontram os solos mais ricos em nutrientes. Foram milhares de anos neste ritmo, o que induziu diversos especialistas a defenderem a tese de que a Mata Atlântica esteve intimamente ligada a Floresta Amazônica, pois ambas detém diversas semelhanças em seus ciclos sazonais e em espécimes de fauna e flora.

Mas com a derrubada desta proteção vegetal e o encurtamento do ciclo de chuvas oriundas do mega sistema amazônico, as mudanças climáticas ganharam impulso e têm causado alterações no desenvolvimento de diferentes culturas agrícolas, entre elas milho, trigo e café com impactos imensos na produção brasileira e norte-americana. A avaliação partiu dos integrantes do Workshop on Impacts of Global Climate Change on Agriculture and Livestock , realizado em maio na Universidade de São Paulo (USP), em Ribeirão Preto (SP).

* Júlio Ottoboni é jornalista diplomado e pós-graduado em jornalismo científico.

Impact of Deepwater Horizon oil spill on coral is deeper and broader than predicted (Science Daily)

Date: July 28, 2014

Source: Penn State

Summary: A new discovery of two additional coral communities showing signs of damage from the Deepwater Horizon oil spill expands the impact footprint of the 2010 spill in the Gulf of Mexico.


A new discovery of two additional coral communities showing signs of damage from the Deepwater Horizon oil spill expands the impact footprint of the 2010 spill in the Gulf of Mexico. The discovery was made by a team led by Charles Fisher, professor of biology at Penn State University. A paper describing this work and additional impacts of human activity on corals in the Gulf of Mexico will be published during the last week of July 2014 in the online Early Edition of the journal Proceedings of the National Academy of Sciences. Several colonies of coral with attached anemones and brittle star from a previously discovered coral community 13 km from the spill site showing damage from the Deepwater Horizon oil spill. Corals from this community were used as models to identify damage from the oil spill in two newly discovered coral communities. The extensive brown growth on the normally gold-colored coral is not found on healthy colonies. Credit: Fisher lab, Penn State University

A new discovery of two additional coral communities showing signs of damage from the Deepwater Horizon oil spill expands the impact footprint of the 2010 spill in the Gulf of Mexico. The discovery was made by a team led by Charles Fisher, professor of biology at Penn State University.

A paper describing this work and additional impacts of human activity on corals in the Gulf of Mexico will be published during the last week of July 2014 in the online Early Edition of the Proceedings of the National Academy of Sciences.

“The footprint of the impact of the spill on coral communities is both deeper and wider than previous data indicated,” said Fisher. “This study very clearly shows that multiple coral communities, up to 22 kilometers from the spill site and at depths over 1800 meters, were impacted by the spill.”

The oil from the spill in the Gulf of Mexico has largely dissipated, so other clues now are needed to identify marine species impacted by the spill. Fisher’s team used the current conditions at a coral community known to have been impacted by the spill in 2010 as a model “fingerprint” for gauging the spill’s impact in newly discovered coral communities.

Unlike other species impacted by the spill whose remains quickly disappeared from the ocean floor, corals form a mineralized skeleton that can last for years after the organism has died. “One of the keys to coral’s usefulness as an indicator species is that the coral skeleton retains evidence of the damage long after the oil that caused the damage is gone,” said Fisher. The scientists compared the newly discovered coral communities with one they had discovered and studied around the time of the oil spill, using it as a model for the progression of damage caused by the spill over time. “We were able to identify evidence of damage from the spill in the two coral communities discovered in 2011 because we know exactly what our model coral colonies, impacted by the oil spill in 2010, looked like at the time we found the new communities.”

Corals are sparse in the deep waters of the Gulf of Mexico, but because they act as an indicator species for tracking the impact of environmental disasters like the Deepwater Horizon blowout, the effort to find them pays off in useful scientific data. “We were looking for coral communities at depths of over 1000 meters that are often smaller than the size of a tennis court,” said Fisher. “We needed high-resolution images of the coral colonies that are scattered across these communities and that range in size from a small houseplant to a small shrub.”

To begin the search, the team used 3D seismic data from the Bureau of Ocean Energy Management to identify 488 potential coral habitats in a 40 km radius around the spill site. From that list they chose the 29 sites they judged most likely to contain corals impacted by the spill. The team then used towed camera systems and Sentry, an autonomous underwater vehicle (AUV), which they programmed to autonomously travel back-and-forth across specific areas collecting images of the sites from just meters above the ocean floor. Finally, the team used a Shilling ultra-heavy-duty remote-operated vehicle (ROV), to collect high-resolution images of corals at the sites where they were discovered.

“With the cameras on board the ROV we were able to collect beautiful, high-resolution images of the corals,” said Fisher. “When we compared these images with our example of known oil damage, all the signs were present providing clear evidence in two of the newly discovered coral communities of the impact of the Deepwater Horizon oil spill.”

In searching for coral communities impacted by the Deepwater Horizon oil spill, the team also found two coral sites entangled with commercial fishing line. These additional discoveries serve as a reminder that the Gulf is being impacted by a diversity of human activities.

In addition to Fisher, the research team included Pen-Yuan Hsing, Samantha P. Berlet, Miles G. Saunders and Elizabeth A. Larcom from Penn State; Carl L. Kaiser, Dana R. Yoerger, and Timothy M. Shank from the Woods Hole Oceanographic Institution; Harry H. Roberts from Louisiana State University; William W. Shedd from the Bureau of Ocean Energy Management; Erik E. Cordes from Temple University; and James M. Brooks from TDI-Brooks International Inc.

The research was supported by the Assessment and Restoration Division of the National Oceanic and Atmospheric Administration (NOAA), the Gulf of Mexico Research Initiative funding to support the Ecosystem Impacts of Oil and Gas Inputs to the Gulf (ECOGIG) consortium administered by the University of Mississippi, and B P as part of the Deepwater Horizon Oil Spill Natural Resource Damage Assessment.

Journal Reference:

  1. Charles R. Fisher, Pen-Yuan Hsing, Carl L. Kaiser, Dana R. Yoerger, Harry H. Roberts, William W. Shedd, Erik E. Cordes, Timothy M. Shank, Samantha P. Berlet, Miles G. Saunders, Elizabeth A. Larcom, and James M. Brooks. Footprint of Deepwater Horizon blowout impact to deep-water coral communities.Proceedings of the National Academy of Sciences, 2014; DOI:10.1073/pnas.1403492111

Luxury cruise line accused of offering ‘environmental disaster tourism’ with high-carbon footprint Arctic voyage (The Independent)

Cruise passengers will pay upwards of £12,000 to see polar bears and humpback whales in their natural habitat – before it disappears

ADAM WITHNALL
Tuesday 29 July 2014

A luxury cruise operator in the US has announced it will offer a “once-in-a-lifetime” trip to experience the environmental devastation of the Arctic – using a mode of transport that emits three times more CO2 per passenger per mile than a jumbo jet.

It will be the first ever leisure cruise through the Northwest Passage, only accessible now because of the melting of polar ice, and is being marketed at those with an interest in witnessing the effects of climate change first-hand.

Tickets for the trip, scheduled for 16 August 2016 and organised by Crystal Cruises, will cost between $20,000 (£12,000) and $44,000.

Yet there is no mention on Crystal Cruises’ promotion or FAQ for the journey of the boat’s own carbon footprint.

Up to 1,070 passengers will be taken on the 32-day expedition to see seals, walruses, humpback whales and musk-ox – though the company admits there is “no guarantee” of catching a glimpse of a polar bear.

The bulk of the voyage will take place on the Crystal Serenity, a 68,000-ton, 13-deck ship, though it will also be accompanied by an escort vessel and a helicopter.

Popular Science described the trip as “environmental disaster tourism”, and quoted research which suggests that the carbon footprint of a cruise ship, per passenger per mile covered, is triple that of a Boeing 747 flight.

The company said passengers may be able to see endangered polar bears while on the cruise

The company said passengers may be able to see endangered polar bears while on the cruise

The cruise promotion was criticised by social media users for giving people the opportunity to “see/help ruin the environment”, “watch the ravages of global warming in person and become a human vulture” and take a “high-carbon-footprint cruise to watch polar bears drown”.

World Ocean Observatory wrote: “Is no place safe from our intrusion, waste, and consumption?”

In an FAQ on its website, Crystal Cruises said 14 experts would be accompanying guests on the cruise to give lectures about the impacts on the environment around them of climate change, as well as the “historic” nature of their inaugural journey down the Northern Passage.

Company executive Thomas Mazloum told the website GCaptain: “During this voyage, speakers will enlighten guests on information regarding climate change, and how it has impacted this passage.

“With the recent retreat of polar ice, the time is right for us to lead the way within the travel industry, as Crystal has done throughout our 25-year history.”

Under the heading of “Environmental” on its FAQ, Crystal Cruises said both the main ship and escort vessel would “voluntarily use Marine Gas Oil, a low-sulphur fuel… well in excess of the existing environmental regulations”.

Desastres naturais arrasarão os benefícios do desenvolvimento (IPS)

24/7/2014 – 10h14

por Stephen Leahy, da IPS

desastres Desastres naturais arrasarão os benefícios do desenvolvimento

Uxbridge, Canadá, 24/7/2014 – Será impossível acabar com a pobreza extrema e a fome com o rápido aquecimento do planeta, repleto de secas, inundações catastróficas e um clima cada vez mais instável, segundo ativistas que participaram das negociações dos Objetivos de Desenvolvimento Sustentável (ODS). A Organização das Nações Unidas (ONU) divulgou, no dia 19, o rascunho dos 17 ODS após um ano e meio de discussão entre mais de 60 países participantes no processo voluntário.

Os ODS são um conjunto de metas e objetivos destinados a eliminar a pobreza extrema e conseguir o desenvolvimento sustentável. Quando estiverem definidos em 2015, ao término dos oito Objetivos de Desenvolvimento do Milênio (ODM), os ODS se converterão no itinerário a ser seguido pelos países para elaborarem suas políticas e decisões ambientais e socioeconômicas.

“Os desastres naturais são um motivo importante do descumprimento de muitas das metas dos ODM”, afirmou Singh Harjeet,  coordenador internacional de mitigação de riscos de desastres na ActionAid International, uma organização de desenvolvimento internacional com sede em Johannesburgo. “Uma inundação grande ou um tufão podem atrasar o desenvolvimento de uma região em 20 anos”, apontou. Os tufões são ciclones tropicais caracterizados por ventos superiores a 118 quilômetros por hora.

Singh recordou que o tufão Haiyan matou mais de seis mil pessoas e deixou quase dois milhões de vítimas nas Filipinas em novembro de 2013. Menos de um ano antes, em dezembro de 2012, o país sofreu com a passagem do tufão Bopha, que causou mais de mil mortes e cerca de US$ 350 milhões em danos. Nas duas últimas semanas dois tufões atingiram esse país, que pode sofrer mais 20 tormentas antes de terminar a temporada desses fenômenos climáticos em outubro.

“Os desastres naturais repercutem em tudo: na segurança alimentar, saúde, educação, infraestrutura, etc. Você não pode sair da pobreza se precisa reconstruir sua casa a cada dois anos”, afirmou Singh. Os objetivos de eliminação da pobreza ou quase qualquer coisa proposta pelos ODS “não têm sentido sem a redução das emissões de carbono”, assegurou.

As emissões de carbono produzidas pela queima de petróleo, carvão e gás prendem o calor do sol. Esta energia calórica adicional equivale à explosão diária de 400 mil bombas atômicas, semelhantes à que destruiu a cidade japonesa de Hiroxima em 1945, nos 365 dias do ano, segundo James Hansen, especialista em clima e ex-diretor do Instituto Goddard de Estudos Espaciais da Administração Nacional da Aeronáutica e do Espaço (Nasa), dos Estados Unidos. Em consequência, agora o planeta está 0,8 grau mais quente.

“A mudança climática repercute em todos os fenômenos meteorológicos porque o entorno em que ocorrem está mais quente e úmido do que costumava ser”, explicou à IPS Kevin Trenberth, especialista em fenômenos extremos e cientista do Centro Nacional de Pesquisa Atmosférica, dos Estados Unidos. A mudança climática não necessariamente provoca os desastres naturais, mas não há dúvidas de que os agrava, afirmou.

Os ODS devem incorporar questões do clima e vias para o desenvolvimento baixo em emissão de carbono, disse Bernadette Fischler, copresidente da britânica Beyond 2015, uma aliança de mais de mil organizações da sociedade civil que trabalham pela solidez e eficácia dos ODS. “A mudança climática é um problema urgente e tem de estar muito visível nos ODS”, opinou à IPS.

No rascunho atual dos ODS, o clima é o objetivo 13, que pede aos países que “adotem medidas urgentes para combater a mudança climática e suas consequências”. Não há metas de redução das emissões, e em sua maioria se referem apenas à adaptação frente aos próximos fenômenos do clima. “Os países não querem adiantar suas posições nas negociações da ONU sobre mudança climática”, pontuou Lina Dabbagh da Climate Action Network, uma rede mundial de organizações ambientalistas.

A Convenção Marco das Nações Unidas sobre a Mudança Climática (CMNUCC) habilita a negociação para adotar um novo tratado sobre o clima mundial em 2015. Após cinco anos de conversações, não houve progressos em temas fundamentais. “Os ODS são uma grande oportunidade para avançar no clima, mas o objetivo climático é débil e não há um programa de ação”, apontou Dabbagh à IPS.

A redação final do rascunho dos ODS foi um processo extremamente politizado, o que gerou um texto muito cauteloso. As alianças e divisões entre os países foram muito semelhantes às existentes nas negociações da CMNUCC, incluída a divisão entre o Sul em desenvolvimento e o Norte industrial, destacou Dabbagh. Segundo Fischler, os governos estão preocupados com a mudança climática e suas consequências, mas existe uma forte discordância sobre com refleti-lo nos ODS, e alguns pretendem que sejam mencionados apenas no preâmbulo do projeto final.

Países como a Grã-Bretanha acreditam que 17 objetivos são muitos e é possível que alguns sejam eliminados no último ano das negociações, que começarão quando os ODS forem apresentados formalmente à Assembleia Geral da ONU, no dia 24 de setembro. Um dia antes, o secretário-geral das Nações Unidas, Ban Ki-moon, organizará uma cúpula climática com os chefes de governo de muitos países, com a intenção de colocar em andamento o processo para um ambicioso tratado internacional sobre o clima no próximo ano.

“A sociedade civil pressionará fortemente durante a cúpula para que o clima seja uma parte integral dos ODS”, afirmou Dabbagh. Porém, acrescentou, resta muito a ser feito para que os responsáveis políticos e as pessoas compreendam que a ação climática é a chave para eliminar a pobreza extrema e alcançar o desenvolvimento sustentável. Envolverde/IPS

(IPS)

Se falta água, o problema é de planejamento, diz especialista (Projeto 2000 e água)

22/7/2014 – 01h21

por Projeto 2000 e água

represa Se falta água, o problema é de planejamento, diz especialista

 

O planejamento do uso de recursos hídricos é fundamental, como aponta o professor da USP, na entrevista abaixo. Porém, é preciso ter em mente que a água que, apesar de ser comum dizer que a Terra é o planeta água, apenas 2,5% desse recurso na Terra é doce – ou seja, pode ser usado para consumo próprio. A maior parte dela está aprisionada em aquíferos subterrâneos e geleiras. Só 0,26% da água doce da Terra está em lagos, reservatórios e bacias hidrográficas, mais acessíveis ao homem e a atividades econômicas. Isso significa dizer que apenas 0,0065% da água na Terra é água doce disponível. Em resumo: se toda a água da Terra coubesse em um balde de 10 litros, a água doce disponível chegaria a apenas 13 gotas. (Comentário do Akatu)

Segundo dados da Comissão Pastoral da Terra, o Brasil tem um conflito violento por dia por causa da água. Muitas destas disputas ocorrem para evitar a apropriação de recursos hídricos por empresas ou para impedir a construção de barragens. Em março deste ano, foi a vez dos governos de Rio e São Paulo entrarem em atrito. Sob pressão da crise de abastecimento, o governo paulista pediu ao governo federal o desvio das águas do rio Paraíba do Sul, que nasce em São Paulo e também corta cidades mineiras e fluminenses.

Diante deste cenário de tensão, veículos de comunicação não pouparam manchetes anunciando uma “guerra por água”. Para o professor de Geografia da USP Luis Antonio Bittar Venturi, no entanto, a mídia é “fatalista” quando coloca a escassez como origem dos conflitos. “A água é o recurso mais abundante do planeta. Se existe falta d’água em alguns lugares, isto é problema de planejamento”, afirma. Confira a seguir os melhores trechos da entrevista, do projeto 2000 e água:

Luis 300x197 Se falta água, o problema é de planejamento, diz especialista

Como você avalia o discurso de veículos de comunicação que anunciam escassez e guerra por água?

A mídia é muito fatalista. Vende-se mais se você anunciar fome, conflito e guerra. Thomas Malthus dizia que o mundo vai passar fome porque a produção de alimentos é mais lenta que o crescimento da população. Essa é uma afirmação que não considera que o planejamento e a técnica podem reverter isso. É a mesma coisa com a água. Falar que ela vai acabar é um tremendo absurdo. A água doce vem do oceano, via evaporação e precipitação. Esse é um sistema que nunca vai acabar, a não ser que a Terra acabe.

Se a água é um recurso abundante, por que estamos passando por uma crise hídrica na Região Metropolitana de São Paulo?

É falta de planejamento a médio e longo prazo. Em São Paulo, o clima é tropical úmido, então a recarga de água vinda do Oceano está assegurada. A recarga é muito maior do que a água que conseguimos usar, só que, por uma questão de mau planejamento, há muita demanda concentrada nas metrópoles. Além disso, falta incorporar no planejamento dados científicos, que existem e estão disponíveis. Mas o poder público prefere culpar a natureza.

A falta d’água em São Paulo gerou a polêmica do desvio do Rio Paraíba do Sul para abastecer o Sistema Cantareira, gerando um conflito entre os governos de Rio e São Paulo. Isso, para você, não seria um conflito por falta de água?

Uma bacia hidrográfica é um sistema integrado e deve ser gerida por inteiro, independentemente de quantos Estados a compartilhem. Internamente aos países existem conflitos, mas eles são usados como bandeira política, porque tem forte apelo emocional: “Ah, São Paulo está roubando a água”, o que é uma besteira. A água é o recurso mais abundante no planeta. Se existe falta d’água em alguns lugares, isto é problema de planejamento.

Que mudanças no planejamento ajudariam a resolver o problema?

Fazer a interligação dos sistemas Cantareira com Alto Cotia e Guarapiranga. Enquanto o Sistema Cantareira estava com 11% da sua capacidade, o Alto Cotia estava com 77%! Não é falta d’água! Outro ponto: o volume de perda na distribuição na SABESP é acima de 30%, devido a ligações clandestinas e vazamentos. Resolver isto seria como produzir 30% a mais de água. Além destas questões, só agora há um sistema para usar o volume morto dos reservatórios, que é meramente uma questão técnica.

No Brasil 34 milhões de pessoas não têm acesso à água potável. Como você avalia esse cenário?

A água, embora seja o recurso mais abundante do mundo, não se distribui de forma equitativa pelo globo. Então, cabe ao homem planejar. Toda vez que há uma população acometida pela escassez hídrica, a culpa é o problema social, e não um problema natural.

Parte do problema de acesso também é reflexo das diferenças sociais?

Há dois tipos de escassez. O chamado estresse hídrico natural é quando um lugar não tem água mesmo, mas você pode resolver isso de alguma forma, como os dessalinizadores usados na Península Arábica. E o estresse socioeconômico, que ocorre em locais de pobreza e sem um planejamento adequado. É uma irracionalidade de planejamento na Amazônia haver problemas de saúde e alta taxa de mortalidade infantil por falta de acesso a água de qualidade. As embarcações que levam mercadorias de Manaus para o interior da Amazônia estão apilhadas de garrafões de água mineral comprados.

Há algo que esteja sendo feito?

Existe um projeto do Governo Federal de construção de cisternas em casas de comunidades rurais da região Nordeste, e que está, de fato, fazendo grande diferença na vida desta população. Então, se isso for suficiente, basta. Agora, para você desenvolver a agricultura, é necessário mais do que isto. Aí é preciso transposição do rio São Francisco, da qual eu sou a favor. É tirar 1% de sua água para tornar perenes as bacias que são intermitentes. Depende do contexto. Não há uma fórmula que sirva para todas as regiões.

Os mais de 70% de água destinada à agricultura não fazem falta para outros setores?

Essa é uma média mundial. A agricultura é o setor que mais consome água. Mas ela nem sempre é potável. No interior do Brasil, a água é bombeada diretamente do Rio. Já na Síria há em todo lugar duas torneiras: uma que você pode beber e outra que você não pode. A que você não pode beber é usada para limpeza e a água de reuso também vai para a agricultura.Quanto ao uso doméstico, é preciso ter um mínimo assegurado. O mínimo mesmo, que em uma situação crítica são 100 m³/ ano por habitante, e que é a situação natural de vários países, principalmente na Península Arábica. Mas eles conseguem, por meio do planejamento e da técnica, ter um abastecimento per capita do mesmo nível de alguns países europeus e de lugares que têm bastante água.

Você é otimista nas perspectivas de que o Brasil vá se atentar mais à questão do planejamento hídrico?

Eu tendo a ser. O problema é que a gente sempre corre atrás do prejuízo. Precisa vir uma crise de abastecimento para a Sabesp e o governo do Estado acordarem. Mas o ideal seria um planejamento mais eficiente e adequado, que evitasse a necessidade de passar por períodos de racionamento de água e energia.

Leia aqui a reportagem hipermídia que retrata crise de água em São Paulo.

* Publicado originalmente no site 200 e água e retirado do site Akatu.

(Akatu)

Dahr Jamail | The Brink of Mass Extinction (Truthout)

Monday, 21 July 2014 09:24

By Dahr Jamail, Truthout | News Analysis

Brink of extinction(Image: Polluted dawnice bergs via Shutterstock; Edited: JR/TO)

“We do not inherit the earth from our ancestors; we borrow it from our children.”
 – Native American proverb

March through June 2014 were the hottest on record globally, according to the Japan Meteorological Agency. In May – officially the hottest May on record globally – the average temperature of the planet was .74 degrees Celsius above the 20th century baseline, according to data from the National Oceanic and Atmospheric Administration. The trend is clear: 2013 was the 37th consecutive year of above-average global temperatures, and since the Industrial Revolution began, the earth has been warmed by .85 degrees Celsius. Several scientific reports and climate modeling show that at current trajectories (business as usual), we will see at least a 6-degree Celsius increase by 2100.

In the last decade alone, record high temperatures across the United States have outnumbered record low temperatures two to one, and the trend is both continuing and escalating.

While a single extreme weather event is not proof of anthropogenic climate disruption (ACD), the increasing intensity and frequency of these events are. And recent months have seen many of these.

A record-breaking heat wave gripped India in June, as temperatures hovered at 46 degrees Celsius, sometimes reaching 48 degrees Celsius. Delhi’s 22 million residents experienced widespread blackouts and rioting, as the heat claimed hundreds of lives.

Also in June, Central Europe cooked in unseasonably extreme heat, with Berlin experiencing temperatures over 32 degrees Celsius, which is more than 12 degrees hotter than normal.

At the same time, at least four people died in Japan, and another 1,637 were hospitalized as temperatures reached nearly 38 degrees Celsius.

NASA is heightening its efforts to monitor ACD’s impacts on the planet; recently, it launched the first spacecraft dedicated solely to studying atmospheric carbon dioxide.

The spacecraft will have plenty to study, since earth’s current carbon dioxide concentration is now the longest ever in recorded history.

Earth

recent report by the National Resource Defense Council warned that summers in the future are likely to bring increased suffering, with more poison ivy and biting insects, and decreasing quality of air and water.

As farmers struggle to cope with increasing demands for food as the global population continues to swell, they are moving towards growing crops designed to meet these needs as well as withstand more extreme climate conditions. However, a warning by an agricultural research group shows they may inadvertently be increasing global malnutrition by these efforts. “When I was young, we used to feed on amaranth vegetables, guava fruits, wild berries, jackfruits and many other crops that used to grow wild in our area. But today, all these crops are not easily available because people have cleared the fields to plant high yielding crops such as kales and cabbages which I am told have inferior nutritional values,” Denzel Niyirora, a primary school teacher in Kigali, said in the report.

The stunning desert landscape of Joshua Tree National Park is now in jeopardy, as Joshua trees are now beginning to die out due to ACD.

Another study, this one published in the journal Polar Biology, revealed that birds up on Alaska’s North Slope are nesting earlier in order to keep apace with earlier snowmelt.

Antarctic emperor penguin colonies could decline by more than half in under 100 years, according to a recent study – and another showed that at least two Antarctic penguin species are losing ground in their fight for survival amidst the increasing impacts of ACD, as the Antarctic Peninsula is one of the most rapidly warming regions on earth. The scientists who authored the report warned that these penguins’ fate is only one example of this type of impact from ACD on the planet’s species, and warned that they “expect many more will be identified as global warming proceeds and biodiversity declines.”

Water

Given that the planetary oceans absorb approximately 90 percent of our carbon dioxide emissions, it should come as no surprise that they are in great peril.

This is confirmed by a recent report that shows the world’s oceans are on the brink of collapse, and in need of rescue within five years, if it’s not already too late.

As the macro-outlook is bleak, the micro perspective sheds light on the reasons why.

In Cambodia, Tonle Sap Lake is one of the most productive freshwater ecosystems on earth. However, it is also in grave danger from overfishing, the destruction of its mangrove forests, an upstream dam and dry seasons that are growing both longer and hotter due to ACD.

Anomalies in the planet’s marine life continue. A 120-foot-long jellyfish is undergoing massive blooms and taking over wider swaths of ocean as the seas warm from ACD.

The Pacific island group of Kiribati – home to 100,000 people – is literally disappearing underwater, as rising sea levels swallow the land. In fact, Kiribati’s president recently purchased eight square miles of land 1,200 miles away on Fiji’s second largest island, in order to have a plan B for the residents of his disappearing country.

Closer to home here in the United States, most of the families living on Isle de Jean Charles, Louisiana, have been forced to flee their multi-generational home due to rising sea levels, increasingly powerful storms, and coastal erosion hurried along by oil drilling and levee projects.

Looking at the bigger picture, a recently released US climate report revealed that at least half a trillion dollars of property in the country will be underwater by 2100 due to rising seas.

Meanwhile, the tropical region of the planet, which covers 130 countries and territories around the equator, is expanding and heating up as ACD progresses.

Residential neighborhoods in Oakland, California – near the coast – are likely to be flooded by both rising seas and increasingly intense storms, according to ecologists and local area planners.

On the East Coast, ocean acidification from ACD, along with lowered oxygen in estuaries, are threatening South Carolina’s coastal marine life and the seafood industry that depends upon it.

Record-setting “100-year” flooding events in the US Midwest are now becoming more the rule than the exception, thanks to ACD.

Even Fairbanks, Alaska received one-quarter of its total average annual rainfall in a 24-hour period earlier this summer – not long after the area had already received roughly half its average annual rainfall in just a two-week period.

Rising sea levels are gobbling up the coast of Virginia so quickly now that partisan political debate over ACD is also falling by the wayside, as both Republicans and Democrats are working together to figure out what to do about the crisis.

Reuters released a report showing how “Coastal flooding along the densely populated Eastern Seaboard of the United States has surged in recent years . . . with the number of days a year that tidal waters reached or exceeded NOAA flood thresholds more than tripling in many places during the past four decades.”

Flooding from rising seas is already having a massive impact in many other disparate areas of the world: After torrential rain and flooding killed at least a dozen people in Bulgaria this summer, the country continues to struggle with damage from the flooding as it begins to tally the economic costs of the disasters.

In China, rain and flooding plunged large areas of the Jiangxi and Hunan Provinces into emergency response mode. Hundreds of thousands were impacted.

The region of the globe bordering the Indian Ocean stretching from Indonesia to Kenya is now seen as being another bulls-eye target for ACD, as the impacts there are expected to triple the frequency of both drought and flooding in the coming decades, according to a recent study.

Another study revealed how dust in the wind, of which there is much more than usual, due to spreading drought, is quickening the melting of Greenland’s embattled ice sheet, which is already losing somewhere between 200 to 450 billion tons of ice annually. The study showed that increased dust on the ice will contribute towards another 27 billion tons of ice lost.

Down in Antarctica, rising temperatures are causing a species of moss to thrive, at the detriment of other marine creatures in that fragile ecosystem.

Up in the Arctic, the shrinking ice cap is causing drastic changes to be made in the upcoming 10th edition of the National Geographic Atlas of the World. Geographers with the organization say it is the most striking change ever seen in the history of the publication.

A UK science team predicted that this year’s minimum sea ice extent will likely be similar to last year’s, which is bad news for the ever-shrinking ice cap. Many scientists now predict the ice cap will begin to vanish entirely for short periods of the summer beginning next year.

Canada’s recently released national climate assessment revealed how the country is struggling with melting permafrost as ACD progresses. One example of this occurred in 2006 when the reduced ice layer of ice roads forced a diamond mine to fly in fuel rather than transport it over the melted ice roads, at an additional cost of $11.25 million.

Arctic birds’ breeding calendars are also being impacted. As ACD causes earlier Arctic melting each season, researchers are now warning of long-ranging adverse impacts on the breeding success of migratory birds there.

In addition to the aforementioned dust causing the Greenland ice sheet to melt faster, industrial dust, pollutants and soil, blown over thousands of miles around the globe, are settling on ice sheets from the Himalaya to the Arctic, causing them to melt faster.

At the same time, multi-year drought continues to take a massive toll across millions of acres across the central and western United States. It has caused millions of acres of federal rangeland to turn into dust, and has left a massive swath of land reaching from the Pacific Coast to the Rocky Mountains desolated. ACD, invasive plants and now continuously record-breaking wildfire seasons have brought ranchers to the breaking point across the West.

Drought continues to drive up food prices across the United States, and particularly prices of produce grown in California’s Central Valley. As usual, it is the poor who suffer the most, as increasing food prices, growing unemployment and more challenging access to clean water continue to escalate their struggle to survive.

California’s drought continues to have a massive and myriad impact across the state, as a staggering one-third of the state entered into the worst stage of drought. Even colonies of honeybees are collapsing due, in part, to there being far less natural forage needed to make their honey.

The snowpack in California is dramatically diminished as well. While snowpack has historically provided one-third of the state’s water supply, after three years of very low snowfall, battles have begun within the state over how to share the decreasing water from what used to be a massive, frozen reservoir of water.

The drought in Oklahoma is raising the specter of a return to the nightmarish dust bowl conditions there in the 1930s.

Recently, and for the first time, the state of Arizona has warned that water shortages could hit Tucson and Phoenix as soon as five years from now due to ongoing drought, increasing demand for water and declining water levels in Lake Mead.

This is a particularly bad outlook, given that the Lake Mead reservoir, the largest in the country, dropped to its lowest level since it was filled in the 1930s. Its decline is reflective of 14 years of ongoing drought, coupled with an increasing disparity between the natural flow rate of the Colorado River that feeds it and the ever-increasing demands for its water from the cities and farms of the increasingly arid Southwest.

Given the now chronic water crises in both Arizona and California, the next water war between the two states looms large. The one-two punch of ACD and overconsumption has combined to find the Colorado River, upon which both states heavily rely, in long-term decline.

Yet it is not just Arizona and California that are experiencing an ongoing water crisis due to ACD impacts – it is the entire southwestern United States. The naturally dry region is now experiencing dramatically extreme impacts that scientists are linkingto ACD.

The water crisis spawned by ACD continues to reverberate globally.

North Korea even recently mobilized its army in order to protect crops as the country’s reservoirs, streams and rivers ran dry amidst a long-term drought. The army was tasked with making sure residents did not take more than their standard allotment of water.

The converging crises of the ongoing global population explosion, the accompanying burgeoning middle class, and increasingly dramatic impacts caused by ACD is straining global water supplies more than ever before, causing governments to examine how to manage populations in a world with less and less water.

Air

A recent report provides a rather apocalyptic forecast for people living in Arizona: It predicts diminishing crop production, escalating electricity bills and thousands of people dying of extreme heat in that state alone.

In fact, another report from the Natural Resources Defense Council found experts predicting that excessive heat generated from ACD will likely kill more than 150,000 Americans by the end of the century, and that is only in the 40 largest cities in the country.

Poor air quality – and the diseases it triggers – are some of the main reasons why public health experts in Canada now believe that ACD is the most critical health issue facing Canadians.

Another recent study shows, unequivocally, that city-dwellers around the world should expect more polluted air that lingers in their metropolis for days on end, as a result of ACD continuing to change wind and rainfall patterns across the planet.

As heat and humidity increase with the growing impacts of ACD, we can now expect to see life-altering results across southern US cities, as has long been predicted. However, we can expect this in our larger northern cities as well, including Seattle, Chicago and New York; the intensifications are on course to make these areas unsuitable for outdoor activity during the summer.

Recently generated predictive mapping shows how many extremely hot days you might have to suffer through when you are older. These show clearly that if we continue along with business as usual – refusing to address ACD with the war-time-level response warranted to mitigate the damage – those being born now who will be here in 2100, will be experiencing heat extremes unlike anything we’ve had to date when they venture outside in the summer.

Lastly for our air section, June was the third month in a row with global average carbon dioxide levels above 400 parts per million. Levels of carbon dioxide in the atmosphere haven’t been this high in somewhere between 800,000 and 15 million years.

Fire

A new study published in Nature Geoscience revealed how increasing frequency and severity of forest fires across the planet are accelerating the melting of the Greenland ice sheet, as soot landing on the ice reduces its reflectivity. Melting at ever increasing speed, if the entire Greenland ice sheet melts, sea levels will rise 24 feet globally.

Down in Australia, the southern region of the country can now expect drier winters as a new study linked drying trends there, which have been occurring over the last few decades, to ACD.

On the other side of the globe, in Canada’s Northwest Territories, the region is battling its worst fires since the 1990s, bringing attention to the likelihood that ACD is amplifying the severity of northern wildfires.

A recently published global atlas of deaths and economic losses caused by wildfires, drought, flooding and other ACD-augmented weather extremes, revealed how such disasters are increasing worldwide, setting back development projects by years, if not decades, according to its publishers.

Denial and Reality

Never underestimate the power of denial.

Rep. Jeff Miller (R-Florida) was asked by an MSNBC journalist if he was concerned about the fact that most voters believe scientists on the issue of ACD. His response, a page out of the Republican deniers handbook, is particularly impressive:

Miller: It changes. It gets hot; it gets cold. It’s done it for as long as we have measured the climate.

MSNBC: But man-made, isn’t that the question?

Miller: Then why did the dinosaurs go extinct? Were there men that were causing – were there cars running around at that point, that were causing global warming? No. The climate has changed since earth was created.

Another impressive act of denial came from prominent Kentucky State Senate Majority Whip Republican Brandon Smith. At a recent hearing, Smith argued that carbon emissions from coal burning power plants couldn’t possibly be causing ACD because Mars is also experiencing a global temperature rise, and there are no coal plants generating carbon emissions on Mars. He even stated that Mars was the same temperature of Earth.

“I think that in academia, we all agree that the temperature on Mars is exactly as it is here. Nobody will dispute that,” Smith said.

On average, the temperature on Mars is about minus 80 degrees Fahrenheit.

“Yet there are no coal mines on Mars; there’s no factories on Mars that I’m aware of,” he added. “So I think what we’re looking at is something much greater than what we’re going to do.”

During a recent interview on CNBC, Princeton University professor and chairman of the Marshall Institute William Happer was called out on the fact that ExxonMobil had provided nearly $1 million for the Institute.

Happer compared the “hype” about ACD to the Holocaust, and when asked about his 2009 comparison of climate science to Nazi propaganda, he said, “The comment I made was, the demonization of carbon dioxide is just like the demonization of the poor Jews under Hitler. Carbon dioxide is actually a benefit to the world, and so were the Jews.”

Happer, who was introduced as an “industry expert” on the program, has not published one peer-reviewed paper on ACD.

The ACD-denier group that supports politicians and “scientists” of this type, Heartland (a free-market think tank with a $6 million annual budget) hosted a July conference in Las Vegas for deniers. One of Heartland’s former funders is ExxonMobil, and one of the panels at the conference was titled, “Global Warming As a Social Movement.” The leaders of the conference vowed to “keep doubt alive.”

Australian Prime Minister Tony Abbott used a current trip abroad to attempt to build support for a coalition aimed at derailing international efforts towards dealing with ACD.

He is simply following the lead of former Prime Minister John Howard, who teamed up with former US President George W. Bush and Canadian Prime Minister Stephen Harper to form a climate-denial triumvirate whose goal was to stop efforts aimed at dealing with ACD, in addition to working actively to undermine the Kyoto Protocol.

Meanwhile, Rupert Murdoch has said that ACD should be approached with great skepticism. He said that if global temperatures increased 3 degrees Celsius over the next 100 years, “At the very most one of those [degrees] would be manmade.” He did not provide the science he used to generate this calculation.

In Canada, Vancouver-based Pacific Future Energy Corporation claimed that a $10 billion oil sands refinery it wants to build on the coast of British Columbia would be the “world’s greenest.”

Miami, a low-lying city literally on the front lines of ACD impacts, is being inundated by rising sea levels as its predominantly Republican leadership – made up of ACD deniers – are choosing to ignore the facts and continue forward with major coastal construction projects.

Back to reality, the BBC recently ordered its journalists to cease giving any more TV airtime to ACD deniers.

Brenton County, Oregon has created a Climate Change Adaptation Plan that provides strategies for the communities there to deal with future impacts of ACD.

Despite the millions of dollars annually being pumped into ACD denial campaigns, a recent poll shows that by a 2-to-1 margin, Americans would be willing to pay more to combat ACD impacts, and most would also vote to support a candidate who aims to address the issue.

Another recent report on the economic costs that ACD is expected to generate in the United States over the next 25 years pegged an estimate well into the hundreds of billions of dollars by 2100. Property losses from hurricanes and coastal storms are expected to total around $35 billion, crop yields are expected to decline by 14 percent, and increased electricity costs to keep people cooler are expected to increase by $12 billion annually, to name a few examples.

The bipartisan report also noted that more than a million coastal homes and businesses could flood repeatedly before ultimately being destroyed.

The World Council on Churches, a group that represents more than half a billion Christians, announced that it would pull all its investments out of fossil fuels because the investments were no longer “ethical.”

US Interior Secretary Sally Jewell told reporters recently that she is witnessing ACD’s impacts in practically every national park she visits.

A June report by the UN University’s Institute for Environment and Human Security warned that ACD-driven mass migrations are already happening, and urged countries to immediately create adaption plans to resettle populations and avoid conflict.

For anyone who wonders how much impact humans have on the planet on a daily basis, take a few moments to ponder what just the impact of commercial airline emissions are in a 24-hour period by watching this astounding video.

Lastly, a landmark study released in June by an international group of scientists concluded that Earth is on the brink of a mass extinction event comparable in scale to that which caused the dinosaurs to go extinct 65 million years ago.

The study says extinction rates are now 1,000 times higher than normal, and pegged ACD as the driving cause.

Vai ter água para todo mundo? (2000 e água)

21/7/2014 – 12h01

por 2000 e água

Em 2014, o Estado de São Paulo entrou na maior crise hídrica de sua história. Com sucessivos recordes negativos desde que foram iniciadas suas medições, o Sistema Cantareira, responsável por 45% do abastecimento de água da maior região metropolitana da federação, atingiu suas maiores baixas justamente no verão, época em que mais deveria chover.

O paradoxo climático serviu de justificativa para as autoridades, que lamentaram a falta de chuvas e buscaram soluções apressadas para evitar o tão impopular racionamento. O imediatismo, no entanto, foi sentido pela população. Alguns bairros da cidade já sofrem com frequentes cortes d’água e, apesar do resgate do chamado volume morto, que elevou o nível do Cantareira em 18,5 pontos percentuais em maio, especialistas consideram questão de tempo até que se consuma a última gota do sistema. Ao contrário do tempo seco – atípico para esta época do ano – a crise de abastecimento de água já estava há anos anunciada.

Quando projetado na década de 1960, o Sistema Cantareira previu o abastecimento de água à Grande São Paulo até os anos 2000. Na outorga de 2004, documento assinado pela Sabesp (Companhia de Saneamento do Estado) e pelo Consórcio PCJ (Consórcio das Bacias dos Rios Piracicaba, Capivari e Jundiaí), foi acordado que a companhia procuraria formas de reduzir sua dependência do sistema. Em outras palavras, o tempo seco apenas antecipou um problema que, cedo ou tarde, chegaria às torneiras e chuveiros dos paulistas.

Feito o retrospecto histórico, é necessário entender o complexo ciclo da água em uma região violentamente urbanizada. Não o ciclo natural, que todos aprendem nas escolas, mas o ciclo social, que envolve desigualdade, poluição, consumo, desperdício, grandes obras e desapropriações. O projeto 2000 e água, nome que faz referência ao colapso hídrico prenunciado para o novo milênio, propõe-se a contar a inquietante história de pessoas que vivem ou viveram a água em diferentes fases deste processo.

Acesse aqui a reportagem hipermídia “2000 e água”, sobre a crise hídrica de 2014 em São Paulo. O especial conta com vídeos, fotos, textos, entrevistas, infográficos e um mini-documentário. Confira!

(2000 e água)

Mudanças climáticas de longo prazo provocam mais migrações do que os desastres naturais (O Globo)

JC e-mail 4976, de 24 de junho de 2014

Aumento da temperatura é a principal razão de deslocamentos

Quatro meses atrás, o vulcão Sinabung entrou em erupção na Indonésia, esvaziando as aldeias vizinhas, cobertas de cinzas. Cerca de 100 mil pessoas deixaram suas casas, mas a grande maioria voltou semanas depois. Esse é um retrato de como um desastre natural espanta uma população sem afugentá-la definitivamente. Agora, um estudo das universidades americanas de Princeton e Califórnia e do Escritório Nacional de Pesquisa Econômica dos Estados Unidos afirma que as mudanças climáticas, que ocorrem a longo prazo, provocam mais migrações do que as catástrofes isoladas.

Segundo os pesquisadores, a temperatura e o índice de chuvas são os principais motivadores para as migrações definitivas. Com o avanço dos eventos extremos nas próximas décadas, cada vez mais áreas vão se tornar inabitáveis, e o contingente dos chamados refugiados climáticos deve explodir.

No estudo, publicado na revista “Proceedings of the National Academy of Sciences”, os cientistas acompanharam por 15 anos o deslocamento de sete mil famílias da Indonésia. O país, que é o maior arquipélago do mundo, tem uma população de cerca de 250 milhões de pessoas. Aproximadamente 40% dependem da agricultura, e muitos vivem em áreas costeiras. São regiões altamente vulneráveis ao aumento do nível do mar e outros efeitos ligados às mudanças climáticas.

DESERTIFICAÇÃO É OUTRA CAUSA
Com base nos registros, a pesquisa mostrou que o número de refugiados climáticos é maior em locais onde cresceu a temperatura média do país, que é de 25,1 graus Celsius. Segundo o estudo, isso ocorreu porque o aumento dos termômetros compromete o rendimento das culturas agrícolas. As chuvas teriam um papel mais tímido nas migrações definitivas.

Vice-presidente do Painel Intergovernamental de Mudanças Climáticas, Suzana Kahn concorda com os resultados do estudo.

– Uma população pode acreditar que um episódio isolado, como um vulcão, logo vai se resolver – lembra Suzana, que também é professora da Coppe/UFRJ. – Mas as mudanças climáticas vão obrigar que estas pessoas se retirem definitivamente de suas regiões. É um fenômeno já visto nos pequenos países do Pacífico, que já negociam uma migração definitiva para a Nova Zelândia, por causa do aumento do nível do mar.

A desertificação no Norte da África também provoca a migração de milhares de pessoas para o Sul da Europa. Esse deslocamento tem levado ao crescimento de legendas de extrema-direita, hostis à chegada dos refugiados climáticos.

– A migração de grandes populações também tem consequências econômicas – ressalta Suzana. – Na Europa, por exemplo, a resistência aos africanos é grande porque eles aceitam condições de trabalho muito desfavoráveis. No Ártico, o derretimento de geleiras proporciona a escavação de novos poços de petróleo, o que atrairia muitas pessoas e empresas.

(Renato Grandelle / O Globo)
http://oglobo.globo.com/sociedade/ciencia/mudancas-climaticas-de-longo-prazo-provocam-mais-migracoes-do-que-os-desastres-naturais-12988197#ixzz35ZVsrLCU

Maio de 2014 foi o mais quente do mundo desde 1880 (AFP)

JC e-mail 4976, de 24 de junho de 2014

A temperatura média na superfície terrestre e dos oceanos atingiu 15,54 graus Celsius em maio, isto é, 0,74°C a mais que a média de 14,8°C no século XX

O mês de maio de 2014 foi o mais quente no mundo desde que começaram a subir as temperaturas em 1880, anunciou nesta segunda-feira a Agência Americana Oceânica e Atmosférica (NOAA).

A temperatura média na superfície terrestre e dos oceanos atingiu 15,54 graus Celsius em maio, isto é, 0,74°C a mais que a média de 14,8°C no século XX.

Também foi o 39º mês de maio consecutivo e o 351º mês seguido em que a temperatura global do planeta esteve acima da média do século XX, explicou a NOAA.

A última vez em que a temperatura de um mês de maio foi inferior à média do século XX remontava a 1976. O último mês em que a temperatura esteve abaixo da média no século passado foi em fevereiro de 1985.

A maior parte do planeta viveu em maio deste ano temperaturas mais quentes do que a média com picos de calor no leste do Cazaquistão, partes da Indonésia e o noroeste da Austrália, entre outros.

No entanto, partes do nordeste do Atlântico e locais limitados no noroeste e sudoeste do Pacífico, assim como nas águas oceânicas do sul da América, foram mais frias do que a média.

A temperatura de abril de 2014 esteve a par com a de 2010, que tinha sido a mais quente registrada no planeta aquele mês desde 1880, segundo a NOAA.

Segundo prognósticos da NOAA, há 70% de probabilidades de que a corrente quente do Pacífico El Niño volte a aparecer este verão no hemisfério norte e 80% de possibilidades de que surja durante o outono e inverno próximos, o que poderia ter um impacto importante nas temperaturas e nas precipitações em todo o mundo.

(AFP, via portal Terra)
http://noticias.terra.com.br/ciencia/clima/maio-de-2014-foi-o-mais-quente-do-mundo-desde-1880,4a14fb2e8d9c6410VgnCLD200000b1bf46d0RCRD.html

The Coming Climate Crash (New York Times)

Carbon dioxide emissions like those from coal-fired power plants should be taxed to spur energy innovation. Credit Luke Sharrett for The New York Times

THERE is a time for weighing evidence and a time for acting. And if there’s one thing I’ve learned throughout my work in finance, government and conservation, it is to act before problems become too big to manage.

For too many years, we failed to rein in the excesses building up in the nation’s financial markets. When the credit bubble burst in 2008, the damage was devastating. Millions suffered. Many still do.

We’re making the same mistake today with climate change. We’re staring down a climate bubble that poses enormous risks to both our environmentand economy. The warning signs are clear and growing more urgent as the risks go unchecked.

This is a crisis we can’t afford to ignore. I feel as if I’m watching as we fly in slow motion on a collision course toward a giant mountain. We can see the crash coming, and yet we’re sitting on our hands rather than altering course.

We need to act now, even though there is much disagreement, including from members of my own Republican Party, on how to address this issue while remaining economically competitive. They’re right to consider the economic implications. But we must not lose sight of the profound economic risks of doing nothing.

The solution can be a fundamentally conservative one that will empower the marketplace to find the most efficient response. We can do this by putting a price on emissions of carbon dioxide — a carbon tax. Few in the United States now pay to emit this potent greenhouse gas into the atmosphere we all share. Putting a price on emissions will create incentives to develop new, cleaner energy technologies.

It’s true that the United States can’t solve this problem alone. But we’re not going to be able to persuade other big carbon polluters to take the urgent action that’s needed if we’re not doing everything we can do to slow our carbon emissions and mitigate our risks.

I was secretary of the Treasury when the credit bubble burst, so I think it’s fair to say that I know a little bit about risk, assessing outcomes and problem-solving. Looking back at the dark days of the financial crisis in 2008, it is easy to see the similarities between the financial crisis and the climate challenge we now face.

We are building up excesses (debt in 2008, greenhouse gas emissions that are trapping heat now). Our government policies are flawed (incentivizing us to borrow too much to finance homes then, and encouraging the overuse of carbon-based fuels now). Our experts (financial experts then, climate scientists now) try to understand what they see and to model possible futures. And the outsize risks have the potential to be tremendously damaging (to a globalized economy then, and the global climate now).

Back then, we narrowly avoided an economic catastrophe at the last minute by rescuing a collapsing financial system through government action. But climate change is a more intractable problem. The carbon dioxide we’re sending into the atmosphere remains there for centuries, heating up the planet.

That means the decisions we’re making today — to continue along a path that’s almost entirely carbon-dependent — are locking us in for long-term consequences that we will not be able to change but only adapt to, at enormous cost. To protect New York City from rising seas and storm surges is expected to cost at least $20 billion initially, and eventually far more. And that’s just one coastal city.

New York can reasonably predict those obvious risks. When I worry about risks, I worry about the biggest ones, particularly those that are difficult to predict — the ones I call small but deep holes. While odds are you will avoid them, if you do fall in one, it’s a long way down and nearly impossible to claw your way out.

Scientists have identified a number of these holes — potential thresholds that, once crossed, could cause sweeping, irreversible changes. They don’t know exactly when we would reach them. But they know we should do everything we can to avoid them.

Already, observations are catching up with years of scientific models, and the trends are not in our favor.

Fewer than 10 years ago, the best analysis projected that melting Arctic sea ice would mean nearly ice-free summers by the end of the 21st century. Now the ice is melting so rapidly that virtually ice-free Arctic summers could be here in the next decade or two. The lack of reflective ice will mean that more of the sun’s heat will be absorbed by the oceans, accelerating warming of both the oceans and the atmosphere, and ultimately raising sea levels.

Even worse, in May, two separate studies discovered that one of the biggest thresholds has already been reached. The West Antarctic ice sheet has begun to melt, a process that scientists estimate may take centuries but that could eventually raise sea levels by as much as 14 feet. Now that this process has begun, there is nothing we can do to undo the underlying dynamics, which scientists say are “baked in.” And 10 years from now, will other thresholds be crossed that scientists are only now contemplating?

It is true that there is uncertainty about the timing and magnitude of these risks and many others. But those who claim the science is unsettled or action is too costly are simply trying to ignore the problem. We must see the bigger picture.

The nature of a crisis is its unpredictability. And as we all witnessed during the financial crisis, a chain reaction of cascading failures ensued from one intertwined part of the system to the next. It’s easy to see a single part in motion. It’s not so easy to calculate the resulting domino effect. That sort of contagion nearly took down the global financial system.

With that experience indelibly affecting my perspective, viewing climate change in terms of risk assessment and risk management makes clear to me that taking a cautiously conservative stance — that is, waiting for more information before acting — is actually taking a very radical risk. We’ll never know enough to resolve all of the uncertainties. But we know enough to recognize that we must act now.

I’m a businessman, not a climatologist. But I’ve spent a considerable amount of time with climate scientists and economists who have devoted their careers to this issue. There is virtually no debate among them that the planet is warming and that the burning of fossil fuels is largely responsible.

Farseeing business leaders are already involved in this issue. It’s time for more to weigh in. To add reliable financial data to the science, I’ve joined with the former mayor of New York City, Michael R. Bloomberg, and the retired hedge fund manager Tom Steyer on an economic analysis of the costs of inaction across key regions and economic sectors. Our goal for the Risky Business project — starting with a new study that will be released this week — is to influence business and investor decision making worldwide.

We need to craft national policy that uses market forces to provide incentives for the technological advances required to address climate change. As I’ve said, we can do this by placing a tax on carbon dioxide emissions. Many respected economists, of all ideological persuasions, support this approach. We can debate the appropriate pricing and policy design and how to use the money generated. But a price on carbon would change the behavior of both individuals and businesses. At the same time, all fossil fuel — and renewable energy — subsidies should be phased out. Renewable energy can outcompete dirty fuels once pollution costs are accounted for.

Some members of my political party worry that pricing carbon is a “big government” intervention. In fact, it will reduce the role of government, which, on our present course, increasingly will be called on to help communities and regions affected by climate-related disasters like floods, drought-related crop failures and extreme weather like tornadoes, hurricanes and other violent storms. We’ll all be paying those costs. Not once, but many times over.

This is already happening, with taxpayer dollars rebuilding homes damaged by Hurricane Sandy and the deadly Oklahoma tornadoes. This is a proper role of government. But our failure to act on the underlying problem is deeply misguided, financially and logically.

In a future with more severe storms, deeper droughts, longer fire seasons and rising seas that imperil coastal cities, public funding to pay for adaptations and disaster relief will add significantly to our fiscal deficit and threaten our long-term economic security. So it is perverse that those who want limited government and rail against bailouts would put the economy at risk by ignoring climate change.

This is short-termism. There is a tendency, particularly in government and politics, to avoid focusing on difficult problems until they balloon into crisis. We would be fools to wait for that to happen to our climate.

When you run a company, you want to hand it off in better shape than you found it. In the same way, just as we shouldn’t leave our children or grandchildren with mountains of national debt and unsustainable entitlement programs, we shouldn’t leave them with the economic and environmental costs of climate change. Republicans must not shrink from this issue. Risk management is a conservative principle, as is preserving our natural environment for future generations. We are, after all, the party of Teddy Roosevelt.

THIS problem can’t be solved without strong leadership from the developing world. The key is cooperation between the United States and China — the two biggest economies, the two biggest emitters of carbon dioxide and the two biggest consumers of energy.

When it comes to developing new technologies, no country can innovate like America. And no country can test new technologies and roll them out at scale quicker than China.

The two nations must come together on climate. The Paulson Institute at the University of Chicago, a “think-and-do tank” I founded to help strengthen the economic and environmental relationship between these two countries, is focused on bridging this gap.

We already have a head start on the technologies we need. The costs of the policies necessary to make the transition to an economy powered by clean energy are real, but modest relative to the risks.

A tax on carbon emissions will unleash a wave of innovation to develop technologies, lower the costs of clean energy and create jobs as we and other nations develop new energy products and infrastructure. This would strengthen national security by reducing the world’s dependence on governments like Russia and Iran.

Climate change is the challenge of our time. Each of us must recognize that the risks are personal. We’ve seen and felt the costs of underestimating the financial bubble. Let’s not ignore the climate bubble.

The Turning Point: New Hope for the Climate (Rolling Stone)

It’s time to accelerate the shift toward a low-carbon future

JUNE 18, 2014

In the struggle to solve the climate crisis, a powerful, largely unnoticed shift is taking place. The forward journey for human civilization will be difficult and dangerous, but it is now clear that we will ultimately prevail. The only question is how quickly we can accelerate and complete the transition to a low-carbon civilization. There will be many times in the decades ahead when we will have to take care to guard against despair, lest it become another form of denial, paralyzing action. It is true that we have waited too long to avoid some serious damage to the planetary ecosystem – some of it, unfortunately, irreversible. Yet the truly catastrophic damages that have the potential for ending civilization as we know it can still – almost certainly – be avoided. Moreover, the pace of the changes already set in motion can still be moderated significantly.

Global Warming’s Terrifying New Math

There is surprising – even shocking – good news: Our ability to convert sunshine into usable energy has become much cheaper far more rapidly than anyone had predicted. The cost of electricity from photovoltaic, or PV, solar cells is now equal to or less than the cost of electricity from other sources powering electric grids in at least 79 countries. By 2020 – as the scale of deployments grows and the costs continue to decline – more than 80 percent of the world’s people will live in regions where solar will be competitive with electricity from other sources.

No matter what the large carbon polluters and their ideological allies say or do, in markets there is a huge difference between “more expensive than” and “cheaper than.” Not unlike the difference between 32 degrees and 33 degrees Fahrenheit. It’s not just a difference of a degree, it’s the difference between a market that’s frozen up and one that’s liquid. As a result, all over the world, the executives of companies selling electricity generated from the burning of carbon-based fuels (primarily from coal) are openly discussing their growing fears of a “utility death spiral.”

Germany, Europe’s industrial powerhouse, where renewable subsidies have been especially high, now generates 37 percent of its daily electricity from wind and solar; and analysts predict that number will rise to 50 percent by 2020. (Indeed, one day this year, renewables created 74 percent of the nation’s electricity!)

Scorched Earth: How Climate Change Is Spreading Drought Throughout the Globe

What’s more, Germany’s two largest coal-burning utilities have lost 56 percent of their value over the past four years, and the losses have continued into the first half of 2014. And it’s not just Germany. Last year, the top 20 utilities throughout Europe reported losing half of their value since 2008. According to the Swiss bank UBS, nine out of 10 European coal and gas plants are now losing money.

In the United States, where up to 49 percent of the new generating capacity came from renewables in 2012, 166 coal-fired electricity-generating plants have either closed or have announced they are closing in the past four and a half years. An additional 183 proposed new coal plants have been canceled since 2005.

To be sure, some of these closings have been due to the substitution of gas for coal, but the transition under way in both the American and global energy markets is far more significant than one fossil fuel replacing another. We are witnessing the beginning of a massive shift to a new energy-distribution model – from the “central station” utility-grid model that goes back to the 1880s to a “widely distributed” model with rooftop solar cells, on-site and grid battery storage, and microgrids.

The principal trade group representing U.S. electric utilities, the Edison Electric Institute, has identified distributed generation as the “largest near-term threat to the utility model.” Last May, Barclays downgraded the entirety of the U.S. electric sector, warning that “a confluence of declining cost trends in distributed solar­photovoltaic-power generation and residential­scale power storage is likely to disrupt the status quo” and make utility investments less attractive.

See the 10 Dumbest Things Said About Global Warming

This year, Citigroup reported that the widespread belief that natural gas – the supply of which has ballooned in the U.S. with the fracking of shale gas – will continue to be the chosen alternative to coal is mistaken, because it too will fall victim to the continuing decline in the cost of solar and wind electricity. Significantly, the cost of battery storage, long considered a barrier to the new electricity system, has also been declining steadily – even before the introduction of disruptive new battery technologies that are now in advanced development. Along with the impressive gains of clean-energy programs in the past decade, there have been similar improvements in our ability to do more with less. Since 1980, the U.S. has reduced total energy intensity by 49 percent.

It is worth remembering this key fact about the supply of the basic “fuel”: Enough raw energy reaches the Earth from the sun in one hour to equal all of the energy used by the entire world in a full year.

In poorer countries, where most of the world’s people live and most of the growth in energy use is occurring, photovoltaic electricity is not so much displacing carbon-based energy as leapfrogging it altogether. In his first days in office, the government of the newly elected prime minister of India, Narendra Modi (who has authored an e-book on global warming), announced a stunning plan to rely principally upon photovoltaic energy in providing electricity to 400 million Indians who currently do not have it. One of Modi’s supporters, S.L. Rao, the former utility regulator of India, added that the industry he once oversaw “has reached a stage where either we change the whole system quickly, or it will collapse.”

Nor is India an outlier. Neighboring Bangladesh is installing nearly two new rooftop PV systems every minute — making it the most rapidly growing market for PVs in the world. In West and East Africa, solar-electric cells are beginning what is widely predicted to be a period of explosive growth.

At the turn of the 21st century, some scoffed at projections that the world would be installing one gigawatt of new solar electricity per year by 2010. That goal was exceeded 17 times over; last year it was exceeded 39 times over; and this year the world is on pace to exceed that benchmark as much as 55 times over. In May, China announced that by 2017, it would have the capacity to generate 70 gigawatts of photovoltaic electricity. The state with by far the biggest amount of wind energy is Texas, not historically known for its progressive energy policies.

The cost of wind energy is also plummeting, having dropped 43 percent in the United States since 2009 – making it now cheaper than coal for new generating capacity. Though the downward cost curve is not quite as steep as that for solar, the projections in 2000 for annual worldwide wind deployments by the end of that decade were exceeded seven times over, and are now more than 10 times that figure. In the United States alone, nearly one-third of all new electricity-generating capacity in the past five years has come from wind, and installed wind capacity in the U.S. has increased more than fivefold since 2006.

For consumers, this good news may soon get even better. While the cost of carbon­based energy continues to increase, the cost of solar electricity has dropped by an average of 20 percent per year since 2010. Some energy economists, including those who produced an authoritative report this past spring for Bernstein Research, are now predicting energy-price deflation as soon as the next decade.

For those (including me) who are surprised at the speed with which this impending transition has been accelerating, there are precedents that help explain it. Remember the first mobile-telephone handsets? I do; as an inveterate “early adopter” of new technologies, I thought those first huge, clunky cellphones were fun to use and looked cool (they look silly now, of course). In 1980, a few years before I bought one of the early models, AT&T conducted a global market study and came to the conclusion that by the year 2000 there would be a market for 900,000 subscribers. They were not only wrong, they were way wrong: 109 million contracts were active in 2000. Barely a decade and a half later, there are 6.8 billion globally. 
These parallels have certainly caught the attention of the fossil-fuel industry and its investors: Eighteen months ago, the Edison Electric Institute described the floundering state of the once-proud landline-telephone companies as a grim predictor of what may soon be their fate.

 

The utilities are fighting back, of course, by using their wealth and the entrenched political power they have built up over the past century. In the United States, brothers Charles and David Koch, who run Koch Industries, the second-largest privately owned corporation in the U.S., have secretively donated at least $70 million to a number of opaque political organizations tasked with spreading disinformation about the climate crisis and intimidating political candidates who dare to support renewable energy or the pricing of carbon pollution.

A Call to Arms: An invitation to Demand Action on Climate Change

They regularly repeat shopworn complaints about the inadequate, intermittent and inconsistent subsidies that some governments have used in an effort to speed up the deployment of renewables, while ignoring the fact that global subsidies for carbon-based energy are 25 times larger than global subsidies for renewables.

One of the most effective of the groups financed by the Koch brothers and other carbon polluters is the American Legislative Exchange Council, or ALEC, which grooms conservative state legislators throughout the country to act as their agents in introducing legislation written by utilities and carbon-fuel lobbyists in a desperate effort to slow, if not stop, the transition to renewable energy.

The Kochs claim to act on principles of low taxation and minimal regulation, but in their attempts to choke the development of alternative energy, they have induced the recipients of their generous campaign contributions to contradict these supposedly bedrock values, pushing legislative and regulatory measures in 34 states to discourage solar, or encourage carbon energy, or both. The most controversial of their initiatives is focused on persuading state legislatures and public-utility commissions to tax homeowners who install a PV solar cell on their roofs, and to manipulate the byzantine utility laws and regulations to penalize renewable energy in a variety of novel schemes.

The chief battleground in this war between the energy systems of the past and future is our electrical grid. For more than a century, the grid – along with the regulatory and legal framework governing it – has been dominated by electric utilities and their centralized, fossil-fuel-powered­ electricity-generation plants. But the rise of distributed alternate energy sources allows consumers to participate in the production of electricity through a policy called net metering. In 43 states, homeowners who install solar PV to systems on their rooftops are permitted to sell electricity back into the grid when they generate more than they need.

These policies have been crucial to the growth of solar power. But net metering represents an existential threat to the future of electric utilities, the so-called utility death spiral: As more consumers install solar panels on their roofs, utilities will have to raise prices on their remaining customers to recover the lost revenues. Those higher rates will, in turn, drive more consumers to leave the utility system, and so on.

But here is more good news: The Koch brothers are losing rather badly. In Kansas, their home state, a poll by North Star Opinion Research reported that 91 percent of registered voters support solar and wind. Three-quarters supported stronger policy encouragement of renewable energy, even if such policies raised their electricity bills.

In Georgia, the Atlanta Tea Party joined forces with the Sierra Club to form a new organization called – wait for it – the Green Tea Coalition, which promptly defeated a Koch-funded scheme to tax rooftop solar panels.

Meanwhile, in Arizona, after the state’s largest utility, an ALEC member, asked the public-utility commission for a tax of up to $150 per month for solar households, the opposition was fierce and well-organized. A compromise was worked out – those households would be charged just $5 per month – but Barry Goldwater Jr., the leader of a newly formed organization called TUSK (Tell Utilities Solar won’t be Killed), is fighting a new attempt to discourage rooftop solar in Arizona. Characteristically, the Koch brothers and their allies have been using secretive and deceptive funding in Arizona to run television advertisements attacking “greedy” owners of rooftop solar panels – but their effort has thus far backfired, as local journalists have exposed the funding scam.

Even though the Koch-funded forces recently scored a partial (and almost certainly temporary) victory in Ohio, where the legislature voted to put a hold on the state’s renewable-portfolio standard and study the issue for two years, it’s clear that the attack on solar energy is too little, too late. Last year, the Edison Electric Institute warned the utility industry that it had waited too long to respond to the sharp cost declines and growing popularity of solar: “At the point when utility investors become focused on these new risks and start to witness significant customer- and earnings-erosion trends, they will respond to these challenges. But, by then, it may be too late to repair the utility business model.”

The most seductive argument deployed by the Koch brothers and their allies is that those who use rooftop solar electricity and benefit from the net-metering policies are “free riders” – that is, they are allegedly not paying their share of the maintenance costs for the infrastructure of the old utility model, including the grid itself. This deceptive message, especially when coupled with campaign contributions, has persuaded some legislators to support the proposed new taxes on solar panels.

But the argument ignores two important realities facing the electric utilities: First, most of the excess solar electricity is supplied by owners of solar cells during peak-load hours of the day, when the grid’s capacity is most stressed – thereby alleviating the pressure to add expensive new coal- or gas-fired generating capacity. But here’s the rub: What saves money for their customers cuts into the growth of their profits and depresses their stock prices. As is often the case, the real conflict is between the public interest and the special interest.

The second reality ignored by the Koch brothers is the one they least like to discuss, the one they spend so much money trying to obfuscate with their hired “merchants of doubt.” You want to talk about the uncompensated use of infrastructure? What about sewage infrastructure for 98 million tons per day of gaseous, heat-trapping waste that is daily released into our skies, threatening the future of human civilization? Is it acceptable to use the thin shell of atmosphere surrounding our planet as an open sewer? Free of charge? Really?

 

This, after all, is the reason the climate crisis has become an existential threat to the future of human civilization. Last April, the average CO2 concentrations in the Earth’s atmosphere exceeded 400 parts-per-million on a sustained basis for the first time in at least 800,000 years and probably for the first time in at least 4.5 million years (a period that was considerably warmer than at present).

According to a cautious analysis by the influential climate scientist James Hansen, the accumulated man-made global-warming pollution already built up in the Earth’s atmosphere now traps as much extra heat energy every day as would be released by the explosion of 400,000 Hiroshima-class nuclear bombs. It’s a big planet, but that’s a lot of energy.

And it is that heat energy that is giving the Earth a fever. Denialists hate the “fever” metaphor, but as the American Association for the Advancement of Science (AAAS) pointed out this year, “Just as a 1.4­degree-fever change would be seen as significant in a child’s body, a similar change in our Earth’s temperature is also a concern for human society.”

Thirteen of the 14 hottest years ever measured with instruments have occurred in this century. This is the 37th year in a row that has been hotter than the 20th-century average. April was the 350th month in a row hotter than the average in the preceding century. The past decade was by far the warmest decade ever measured.

Many scientists expect the coming year could break all of these records by a fair margin because of the extra boost from the anticipated El Niño now gathering in the waters of the eastern Pacific. (The effects of periodic El Niño events are likely to become stronger because of global warming, and this one is projected by many scientists to be stronger than average, perhaps on the scale of the epic El Niño of 1997 to 1998.)

The fast-growing number of extreme-weather events, connected to the climate crisis, has already had a powerful impact on public attitudes toward global warming. A clear majority of Americans now acknowledge thatman-made pollution is responsible. As the storms, floods, mudslides, droughts, fires and other catastrophes become ever more destructive, the arcane discussions over how much of their extra-destructive force should be attributed to global warming have become largely irrelevant. The public at large feels it viscerally now. As Bob Dylan sang, “You don’t need a weatherman to know which way the wind blows.”

Besides, there is a simple difference between linear cause and effect and systemic cause and effect. As one of the world’s most-respected atmospheric scientists, Kevin Trenberth, has said, “The environment in which all storms form has changed owing to human activities.”

For example, when Supertyphoon Haiyan crossed the Pacific toward the Philippines last fall, the storm gained strength across seas that were 5.4 degrees Fahrenheit warmer than they used to be because of greenhouse­gas pollution. As a result, Haiyan went from being merely strong to being the most powerful and destructive ocean-based storm on record to make landfall. Four million people were displaced (more than twice as many as by the Indian Ocean tsunami of 10 years ago), and there are still more than 2 million Haiyan refugees desperately trying to rebuild their lives.

When Superstorm Sandy traversed the areas of the Atlantic Ocean windward of New York and New Jersey in 2012, the water temperature was nine degrees Fahrenheit warmer than normal. The extra convection energy in those waters fed the storm and made the winds stronger than they would otherwise have been. Moreover, the sea level was higher than it used to be, elevated by the melting of ice in the frozen regions of the Earth and the expanded volume of warmer ocean waters.

Five years earlier, denialists accused me of demagogic exaggeration in an animated scene in my documentary An Inconvenient Truth that showed the waters of the Atlantic Ocean flooding into the 9/11 Ground Zero Memorial site. But in Sandy’s wake, the Atlantic did in fact flood Ground Zero – many years before scientists had expected that to occur.

Similarly, the inundation of Miami Beach by rising sea levels has now begun, and freshwater aquifers in low-lying areas from South Florida to the Nile Delta to Bangladesh to Indochina are being invaded by saltwater pushed upward by rising oceans. And of course, many low-lying islands – not least in the Bay of Bengal – are in danger of disappearing altogether. Where will the climate refugees go? Similarly, the continued melting of mountain glaciers and snowpacks is, according to the best scientists, already “affecting water supplies for as many as a billion people around the world.”

Just as the extreme-weather events we are now experiencing are exactly the kind that were predicted by scientists decades ago, the scientific community is now projecting far worse extreme-weather events in the years to come. Eighty percent of the warming in the past 150 years (since the burning of carbon-based fuels gained momentum) has occurred in the past few decades. And it is worth noting that the previous scientific projections consistently low-balled the extent of the global­warming consequences that later took place – for a variety of reasons rooted in the culture of science that favor conservative estimates of future effects.

In an effort to avoid these cultural biases, the AAAS noted this year that not only are the impacts of the climate crisis “very likely to become worse over the next 10 to 20 years and beyond,” but “there is a possibility that temperatures will rise much higher and impacts will be much worse than expected. Moreover, as global temperature rises, the risk increases that one or more important parts of the Earth’s climate system will experience changes that may be abrupt, unpredictable and potentially irreversible, causing large damages and high costs.”

Just weeks after that report, there was shock and, for some, a temptation to despair when the startling news was released in May by scientists at both NASA and the University of Washington that the long-feared “collapse” of a portion of the West Antarctic ice sheet is not only under way but is also now “irreversible.” Even as some labored to understand what the word “collapse” implied about the suddenness with which this catastrophe will ultimately unfold, it was the word “irreversible” that had a deeper impact on the collective psyche.

Just as scientists 200 years ago could not comprehend the idea that species had once lived on Earth and had subsequently become extinct, and just as some people still find it hard to accept the fact that human beings have become a sufficiently powerful force of nature to reshape the ecological system of our planet, many – including some who had long since accepted the truth about global warming – had difficulty coming to grips with the stark new reality that one of the long-feared “tipping points” had been crossed. And that, as a result, no matter what we do, sea levels will rise by at least an additional three feet.

The uncertainty about how long the process will take (some of the best ice scientists warn that a rise of 10 feet in this century cannot be ruled out) did not change the irreversibility of the forces that we have set in motion. But as Eric Rignot, the lead author of the NASA study, pointed out in The Guardian, it’s still imperative that we take action: “Controlling climate warming may ultimately make a difference not only about how fast West Antarctic ice will melt to sea, but also whether other parts of Antarctica will take their turn.”

The news about the irreversible collapse in West Antarctica caused some to almost forget that only two months earlier, a similar startling announcement had been made about the Greenland ice sheet. Scientists found that the northeastern part of Greenland – long thought to be resistant to melting – has in fact been losing more than 10 billion tons of ice per year for the past decade, making 100 percent of Greenland unstable and likely, as with West Antarctica, to contribute to significantly more sea-level rise than scientists had previously thought.

 

The heating of the oceans not only melts the ice and makes hurricanes, cyclones and typhoons more intense, it also evaporates around 2 trillion gallons of additional water vapor into the skies above the U.S. The warmer air holds more of this water vapor and carries it over the landmasses, where it is funneled into land-based storms that are releasing record downpours all over the world.

For example, an “April shower” came to Pensacola, Florida, this spring, but it was a freak – another rainstorm on steroids: two feet of rain in 26 hours. It broke all the records in the region, but as usual, virtually no media outlets made the connection to global warming. Similar “once in a thousand years” storms have been occurring regularly in recent years all over the world, including in my hometown of Nashville in May 2010.

All-time record flooding swamped large portions of England this winter, submerging thousands of homes for more than six weeks. Massive downpours hit Serbia and Bosnia this spring, causing flooding of “biblical proportions” (a phrase now used so frequently in the Western world that it has become almost a cliché) and thousands of landslides. Torrential rains in Afghanistan in April triggered mudslides that killed thousands of people – almost as many, according to relief organizations, as all of the Afghans killed in the war there the previous year.

In March, persistent rains triggered an unusually large mudslide in Oso, Washington, killing more than 40 people. There are literally hundreds of other examples of extreme rainfall occurring in recent years in the Americas, Europe, Asia, Africa and Oceania.

In the planet’s drier regions, the same extra heat trapped in the atmosphere by man-made global-warming pollution has also been driving faster evaporation of soil moisture and causing record-breaking droughts. As of this writing, 100 percent of California is in “severe,” “extreme” or “exceptional” drought. Record fires are ravaging the desiccated landscape. Experts now project that an increase of one degree Celsius over pre-industrial temperatures will lead to as much as a 600-­percent increase in the median area burned by forest fires in some areas of the American West – including large portions of Colorado. The National Research Council has reported that fire season is two and a half months longer than it was 30 years ago, and in California, firefighters are saying that the season is now effectively year-round.

Drought has been intensifying in many other dry regions around the world this year: Brazil, Indonesia, central and northwest Africa and Madagascar, central and western Europe, the Middle East up to the Caspian Sea and north of the Black Sea, Southeast Asia, Northeast Asia, Western Australia and New Zealand.

Syria is one of the countries that has been in the bull’s-eye of climate change. From 2006 to 2010, a historic drought destroyed 60 percent of the country’s farms and 80 percent of its livestock – driving a million refugees from rural agricultural areas into cities already crowded with the million refugees who had taken shelter there from the Iraq War. As early as 2008, U.S. State Department cables quoted Syrian government officials warning that the social and economic impacts of the drought are “beyond our capacity as a country to deal with.” Though the hellish and ongoing civil war in Syria has multiple causes – including the perfidy of the Assad government and the brutality on all sides – their climate-related drought may have been the biggest underlying trigger for the horror.

The U.S. military has taken notice of the strategic dangers inherent in the climate crisis. Last March, a Pentagon advisory committee described the climate crisis as a “catalyst for conflict” that may well cause failures of governance and societal collapse. “In the past, the thinking was that climate change multiplied the significance of a situation,” said retired Air Force Gen. Charles F. Wald. “Now we’re saying it’s going to be a direct cause of instability.”

Pentagon spokesman Mark Wright told the press, “For DOD, this is a mission reality, not a political debate. The scientific forecast is for more Arctic ice melt, more sea-level rise, more intense storms, more flooding from storm surge and more drought.” And in yet another forecast difficult for congressional climate denialists to rebut, climate experts advising the military have also warned that the world’s largest naval base, in Norfolk, Virginia, is likely to be inundated by rising sea levels in the future.

And how did the Republican-dominated House of Representatives respond to these grim warnings? By passing legislation seeking to prohibit the Department of Defense from taking any action to prepare for the effects of climate disruption.

There are so many knock-on consequences of the climate crisis that listing them can be depressing – diseases spreading, crop yields declining, more heat waves affecting vulnerable and elderly populations, the disappearance of summer-ice cover in the Arctic Ocean, the potential extinction of up to half of all the living species, and so much more. And that in itself is a growing problem too, because when you add it all up, it’s no wonder that many feel a new inclination to despair.

So, clearly, we will just have to gird ourselves for the difficult challenges ahead. There is indeed, literally, light at the end of the tunnel, but there is a tunnel, and we are well into it.

In November 1936, Winston Churchill stood before the United Kingdom’s House of Commons and placed a period at the end of the misguided debate over the nature of the “gathering storm” on the other side of the English Channel: “Owing to past neglect, in the face of the plainest warnings, we have entered upon a period of danger. . . . The era of procrastination, of half measures, of soothing and baffling expedience of delays is coming to its close. In its place, we are entering a period of consequences. . . . We cannot avoid this period; we are in it now.”

Our civilization is confronting this existential challenge at a moment in our historical development when our dominant global ideology – democratic capitalism – has been failing us in important respects.

Democracy is accepted in theory by more people than ever before as the best form of political organization, but it has been “hacked” by large corporations (defined as “persons” by the Supreme Court) and special interests corrupting the political system with obscene amounts of money (defined as “speech” by the same court).

Capitalism, for its part, is accepted by more people than ever before as a superior form of economic organization, but is – in its current form – failing to measure and include the categories of “value” that are most relevant to the solutions we need in order to respond to this threatening crisis (clean air and water, safe food, a benign climate balance, public goods like education and a greener infrastructure, etc.).

Pressure for meaningful reform in democratic capitalism is beginning to build powerfully. The progressive introduction of Internet-based communication – social media, blogs, digital journalism – is laying the foundation for the renewal of individual participation in democracy, and the re-elevation of reason over wealth and power as the basis for collective decision­making. And the growing levels of inequality worldwide, combined with growing structural unemployment and more frequent market disruptions (like the Great Recession), are building support for reforms in capitalism.

Both waves of reform are still at an early stage, but once again, Churchill’s words inspire: “If you’re going through hell, keep going.” And that is why it is all the more important to fully appreciate the incredible opportunity for salvation that is now within our grasp. As the satirical newspaper The Onion recently noted in one of its trademark headlines: “Scientists Politely Remind World That Clean Energy Technology Ready to Go Whenever.”

We have the policy tools that can dramatically accelerate the transition to clean energy that market forces will eventually produce at a slower pace. The most important has long since been identified: We have to put a price on carbon in our markets, and we need to eliminate the massive subsidies that fuel the profligate emissions of global-warming pollution.

We need to establish “green banks” that provide access to capital investment necessary to develop renewable energy, sustainable agriculture and forestry, an electrified transportation fleet, the retrofitting of buildings to reduce wasteful energy consumption, and the full integration of sustainability in the design and architecture of cities and towns. While the burning of fossil fuels is the largest cause of the climate crisis, deforestation and “factory farming” also play an important role. Financial and technological approaches to addressing these challenges are emerging, but we must continue to make progress in converting to sustainable forestry and agriculture.

In order to accomplish these policy shifts, we must not only put a price on carbon in markets, but also find a way to put a price on climate denial in our politics. We already know the reforms that are needed – and the political will to enact them is a renewable resource. Yet the necessary renewal can only come from an awakened citizenry empowered by a sense of urgency and emboldened with the courage to reject despair and become active. Most importantly, now is the time to support candidates who accept the reality of the climate crisis and are genuinely working hard to solve it – and to bluntly tell candidates who are not on board how much this issue matters to you. If you are willing to summon the resolve to communicate that blunt message forcefully – with dignity and absolute sincerity – you will be amazed at the political power an individual can still wield in America’s diminished democracy.

Something else is also new this summer. Three years ago, in these pages, I criticized the seeming diffidence of President Obama toward the great task of solving the climate crisis; this summer, it is abundantly evident that he has taken hold of the challenge with determination and seriousness of purpose.

He has empowered his Environmental Protection Agency to enforce limits on CO2 emissions for both new and, as of this June, existing sources of CO2. He has enforced bold new standards for the fuel economy of the U.S. transportation fleet. He has signaled that he is likely to reject the absurdly reckless Keystone XL-pipeline proposal for the transport of oil from carbon­intensive tar sands to be taken to market through the United States on its way to China, thus effectively limiting their exploitation. And he is even now preparing to impose new limits on the release of methane pollution.

All of these welcome steps forward have to be seen, of course, in the context of Obama’s continued advocacy of a so-called all-of-the-above energy policy – which is the prevailing code for aggressively pushing more drilling and fracking for oil and gas. And to put the good news in perspective, it is important to remember that U.S. emissions – after declining for five years during the slow recovery from the Great Recession – actually increased by 2.4 percent in 2013.

 

Nevertheless, the president is clearly changing his overall policy emphasis to make CO2 reductions a much higher priority now and has made a series of inspiring speeches about the challenges posed by climate change and the exciting opportunities available as we solve it. As a result, Obama will go to the United Nations this fall and to Paris at the end of 2015 with the credibility and moral authority that he lacked during the disastrous meeting in Copenhagen four and a half years ago.

The international treaty process has been so fraught with seemingly intractable disagreements that some parties have all but given up on the possibility of ever reaching a meaningful treaty.

Ultimately, there must be one if we are to succeed. And there are signs that a way forward may be opening up. In May, I attended a preparatory session in Abu Dhabi, UAE, organized by United Nations Secretary General Ban Ki-moon to bolster commitments from governments, businesses and nongovernmental organizations ahead of this September’s U.N. Climate Summit. The two-day meeting was different from many of the others I have attended. There were welcome changes in rhetoric, and it was clear that the reality of the climate crisis is now weighing on almost every nation. Moreover, there were encouraging reports from around the world that many of the policy changes necessary to solve the crisis are being adopted piecemeal by a growing number of regional, state and city governments.

For these and other reasons, I believe there is a realistic hope that momentum toward a global agreement will continue to build in September and carry through to the Paris negotiations in late 2015.

The American poet Wallace Stevens once wrote, “After the final ‘no’ there comes a ‘yes’/And on that ‘yes’ the future world depends.” There were many no’s before the emergence of a global consensus to abolish chattel slavery, before the consensus that women must have the right to vote, before the fever of the nuclear­arms race was broken, before the quickening global recognition of gay and lesbian equality, and indeed before every forward advance toward social progress. Though a great many obstacles remain in the path of this essential agreement, I am among the growing number of people who are allowing themselves to become more optimistic than ever that a bold and comprehensive pact may well emerge from the Paris negotiations late next year, which many regard as the last chance to avoid civilizational catastrophe while there is still time.

It will be essential for the United States and other major historical emitters to commit to strong action. The U.S. is, finally, now beginning to shift its stance. And the European Union has announced its commitment to achieve a 40-percent reduction in CO2 emissions by 2030. Some individual European nations are acting even more aggressively, including Finland’s pledge to reduce emissions 80 percent by 2050.

It will also be crucial for the larger developing and emerging nations – particularly China and India – to play a strong leadership role. Fortunately, there are encouraging signs. China’s new president, Xi Jinping, has launched a pilot cap-and-trade system in two cities and five provinces as a model for a nationwide cap-and-trade program in the next few years. He has banned all new coal burning in several cities and required the reporting of CO2 emissions by all major industrial sources. China and the U.S. have jointly reached an important agreement to limit another potent source of global-warming pollution – the chemical compounds known as hydro-fluorocarbons, or HFCs. And the new prime minister of India, as noted earlier, has launched the world’s most ambitious plan to accelerate the transition to solar electricity.

Underlying this new breaking of logjams in international politics, there are momentous changes in the marketplace that are exercising enormous influence on the perceptions by political leaders of the new possibilities for historic breakthroughs. More and more, investors are diversifying their portfolios to include significant investments in renewables. In June, Warren Buffett announced he was ready to double Berkshire Hathaway’s existing $15 billion investment in wind and solar energy.

A growing number of large investors – including pension funds, university endowments (Stanford announced its decision in May), family offices and others – have announced decisions to divest themselves from carbon­intensive assets. Activist and “impact” investors are pushing for divestment from carbon­rich assets and new investments in renewable and sustainable assets.

Several large banks and asset managers around the world (full disclosure: Generation Investment Management, which I co-founded with David Blood and for which I serve as chairman, is in this group) have advised their clients of the danger that carbon assets will become “stranded.” A “stranded asset” is one whose price is vulnerable to a sudden decline when markets belatedly recognize the truth about their underlying value – just as the infamous “subprime mortgages” suddenly lost their value in 2007 to 2008 once investors came to grips with the fact that the borrowers had absolutely no ability to pay off their mortgages.

Shareholder activists and public campaigners have pressed carbon-dependent corporations to deal with these growing concerns. But the biggest ones are still behaving as if they are in denial. In May 2013, ExxonMobil CEO Rex Tillerson responded to those pointing out the need to stop using the Earth’s atmosphere as a sewer by asking, “What good is it to save the planet if humanity suffers?”

I don’t even know where to start in responding to that statement, but here is a clue: Pope Francis said in May, “If we destroy creation, creation will destroy us. Never forget this.”

 

Exxonmobil, Shell and many other holders of carbon-intensive assets have argued, in essence, that they simply do not believe that elected national leaders around the world will ever reach an agreement to put a price on carbon pollution.

But a prospective global treaty (however likely or unlikely you think that might be) is only one of several routes to overturning the fossil-fuel economy. Rapid technological advances in renewable energy are stranding carbon investments; grassroots movements are building opposition to the holding of such assets; and new legal restrictions on collateral flows of pollution – like particulate air pollution in China and mercury pollution in the U.S. – are further reducing the value of coal, tar sands, and oil and gas assets.

In its series of reports to energy investors this spring, Citigroup questioned the feasibility of new coal plants not only in Europe and North America, but in China as well. Although there is clearly a political struggle under way in China between regional governments closely linked to carbon-­energy generators, suppliers and users and the central government in Beijing – which is under growing pressure from citizens angry about pollution – the nation’s new leadership appears to be determined to engineer a transition toward renewable energy. Only time will tell how successful they will be.

The stock exchanges in Johannesburg and São Paulo have decided to require the full integration of sustainability from all listed companies. Standard & Poor’s announced this spring that some nations vulnerable to the impacts of the climate crisis may soon have their bonds downgraded because of the enhanced risk to holders of those assets.

A growing number of businesses around the world are implementing sustainability plans, as more and more consumers demand a more responsible approach from businesses they patronize. Significantly, many have been pleasantly surprised to find that adopting efficient, low-carbon approaches can lead to major cost savings.

And all the while, the surprising and relentless ongoing decline in the cost of renewable energy and efficiency improvements are driving the transition to a low-carbon economy.

Is there enough time? Yes. Damage has been done, and the period of consequences will continue for some time to come, but there is still time to avoid the catastrophes that most threaten our future. Each of the trends described above – in technology, business, economics and politics – represents a break from the past. Taken together, they add up to genuine and realistic hope that we are finally putting ourselves on a path to solve the climate crisis.

How long will it take? When Martin Luther King Jr. was asked that question during some of the bleakest hours of the U.S. civil rights revolution, he responded, “How long? Not long. Because no lie can live forever. . . . How long? Not long. Because the arc of the moral universe is long, but it bends toward justice.”

And so it is today: How long? Not long.

This story is from the July 3rd-17th, 2014 issue of Rolling Stone.

http://www.rollingstone.com/politics/news/the-turning-point-new-hope-for-the-climate-20140618

Sem chuva, vale até reciclar esgoto (Página 22)

14 JULHO 2014

Na capital do oeste australiano, nem só de dessalinização vive a gestão da água. No lugar onde a seca é realidade há décadas, a reciclagem tornou-se essencial

Por Flavia Pardini na Página 22

A seca no Sudeste brasileiro pegou muita gente de calça curta no país da enxurrada. Mas no continente mais seco do mundo, a noção de que é preciso gerir a água para o futuro é realidade há décadas.

Na cidade australiana de Perth – onde a vazão para os reservatórios caiu pela metade desde os anos 1970 –, o pilar de longo prazo da política hídrica é a dessalinização, que responde por metade do consumo de 1,8 milhão de habitantes. O outro grande esforço em marcha é o de reciclar.

Um programa de tratamento de “águas residuais” – que vão pelo ralo após o uso em chuveiros, pias e máquinas de lavar – e sua reintrodução no aquífero recebeu luz verde em 2013. No início de março passado, a Water Corporation, empresa que abastece Perth, informou que 3,5 bilhões de litros de água altamente tratada e purificada foram reinjetados nos aquíferos mais profundos da região, onde ficará estocada para uso futuro. O plano é reciclar e reinjetar 7 bilhões de litros por ano, com possibilidade de expansão para 28 bilhões de litros.

O processo envolve ultrafiltragem, osmose reversa e exposição a raios ultravioleta. A reinjeção é necessária para que a população, que prefere um processo “natural” de filtragem, aceite beber água que já foi usada e descartada.

Um porta-voz da Water Corporation informou que a expectativa é de que 1 litro de água reciclada custe “um pouco menos” do que 1 litro de água dessalinizada. Ambientalistas aguerridos contestam as boas intenções da empresa – segundo eles, seria mais barato tornar obrigatório que novas residências captem água da chuva e disponham de seu próprio sistema de reciclagem.

A reciclagem, segundo a Water Corp, tem potencial para responder por até 20% do consumo de Perth em 2060.

Fonte: Página 22.

Crise de água em SP: quanto mais grave, mais ocultada (Outras Palavras)

08/7/2014 – 12h55

por Fernando Brito*

reservatorios Crise de água em SP: quanto mais grave, mais ocultada

Reservatórios baixam novamente. Governo Alckmin e mídia insistem em evitar racionamento e debate antes das eleições. Abastecimento pode sofrer colapso

No último sábado (5/7), ao longo do dia, entraram só 125 milhões de litros de água no Sistema Cantareira. E saíram, mesmo sendo um sábado, dia de menor consumo, 2 bilhões de litros. São dados oficiais da própria Sabesp. A vazão afluente foi de 1,45 metros cúbicos por segundo, a segunda menor do ano. Mas, o “saldo” hídrico foi o pior desde o início do bombeamento, porque, no dia da menor afluência (0,8 m³/s, em 22 de maio), a liberação de água para os rios de sua bacia estava um metro cúbico por segundo abaixo da atual.

A saída de água pelo Túnel 5, por onde a água do Cantareira se junta ao reservatório de Paiva Castro (onde estão entrando cerca de 2 m³/s), registrou uma vazão de 19,19 m³ que, somada aos 4 m³/s liberados para os rios Piracicaba, Capivari e Jundiaí, dá 23,19 m³/s de vazão defluente total.

vazao Crise de água em SP: quanto mais grave, mais ocultadaA diferença entre o que entra e o que sai de água voltou aos dias terríveis de fevereiro, como você pode ver no gráfico, mesmo com muito menos água liberada. Basta fazer as contas com os 180 bilhões de litros que remanescem no Cantareira, aí incluído todo o volume que se espera bombear para o abastecimento da Grande São Paulo.

Até o final da semana que se inicia, metade do volume previsto para bombeamento do maior reservatório, o Jaguari-Jacareí, já terá sido retirado. Um pouco menos de dois meses depois de ser iniciado. Mantido o ritmo atual e se todas as previsões otimistas da Sabesp estiverem certas, a segunda metade durará menos de um mês: em torno de 15 de agosto. Com otimismo, porque os reservatórios, neste momento, se assemelham mais a um conjunto de canais do que a represas.

Restarão então dois meses da água abaixo da tomada d’água do reservatório Atibainha.

chuva Crise de água em SP: quanto mais grave, mais ocultadaIsso se todas as “gambiarras” funcionarem plenamente e as afluências melhorarem um pouco. Nos seis primeiros dias de julho, a água afluente chegou a meros 2,3 m³/s, pouco mais de 20% da mínima mensal já registrada desde 1930, que é de 11,7 m³/s. Novamente, os dados estão disponíveis e é só nossa imprensa querer tratar o assunto com a gravidade que ele tem.

A necessidade de racionamento de água, que era dramática, tornou-se desesperadora e esconder isso é tão grave que não é possível que um governante o faça, por razões eleitorais.

Não é possível sustentar a retirada de água no volume em que está sendo feita.

Nem mesmo o remanejamento de parte dos consumidores do cantareira para o sistema Alto Tietê pode ser mantido, porque o ritmo de esvaziamento deste que é o segundo maior fornecedor de água para os paulistanos também aponta pouco mais de 100 dias de consumo: tem 24,8% de seu volume útil e cai a 0,2% ao dia.

Manter o ritmo atual de consumo é loucura. Pode ser a sobrevivência eleitoral de Alckmin. Mas é o suicídio de nossa maior metrópole.

* Publicado originalmente no blog Tijolaçõ e retirado do site Outras Palavras.

The New Abolitionism (The Nation)

Hurricane Sandy no help to Obama in 2012 presidential race, new study suggests (Science Daily)

Date: June 5, 2014

Source: Union College

Summary: Results suggest that immediately following positive news coverage of Obama’s handling of the storm’s aftermath, Sandy positively influenced attitudes toward Obama, but that by Election Day, reminders of the hurricane became a drag instead of a boon for the president, despite a popular storyline to the contrary.

After Mitt Romney was defeated by President Barack Obama in the 2012 presidential election, some political pundits and even Romney himself tried to pin the loss in part on Hurricane Sandy.

Observers, particularly conservatives, believed the storm was an “October surprise” that allowed Obama to use the trappings of his office to show sympathy and offer support for the victims. The devastating storm hit a week before Election Day, killing hundreds and causing more than $50 billion worth of damage.

But a new study examining the psychological impact of Sandy on people’s voting intentions indicate the storm’s influence was basically a washout.

“Results suggest that immediately following positive news coverage of Obama’s handling of the storm’s aftermath, Sandy positively influenced attitudes toward Obama, but that by Election Day, reminders of the hurricane became a drag instead of a boon for the president, despite a popular storyline to the contrary,” said Joshua Hart, assistant professor of psychology and the study’s author.

The study appears in the June/July issue of Social Science Research, a major journal that publishes papers devoted to quantitative social science research and methodology.

Two days after Hurricane Sandy made landfall Oct. 29, Hart began surveying likely voters when it became apparent the storm could impact the bitterly contested race between Obama and Romney.

Over the course of a week, the nearly 700 voters polled were asked about their exposure to the storm and related media coverage, as well as their voting intentions. Hart randomly assigned around half of each day’s sample to think about the hurricane before reporting their voting intentions, so he could compare preference for Obama versus Romney between voters who had been thinking about the storm, and those who had not.

Prior to the positive news coverage for Obama on Oct. 31, there was no influence of Sandy reminders on Obama’s vote share. This was also true on Nov. 1, the day after his well-publicized embrace with New Jersey Republican Gov. Chris Christie while touring the hard-hit Jersey Shore. It was that appearance in particular that angered Romney supporters since Christie was a Romney surrogate.

Obama did receive a slight bump in support from study participants on Nov. 2 and 3 who thought about Sandy before reporting their voting intentions, but by Election Day, this trend reversed, when news coverage of the storm shifted and became more negative, focusing on loss of life, lingering damage and power outages.

“The data suggest that people going to the polls Nov. 6 with the hurricane on their mind would have been less inclined to vote for Obama,” Hart said.

Still, that didn’t stop a number of pundits from speculating that the storm was a critical factor in Romney’s loss by slowing his momentum, despite polling evidence to the contrary. In winning 26 states and collecting 332 electoral votes, Obama received 51.1 percent of the popular vote to Romney’s 47.2 percent.

Shortly after the election, Romney insisted Sandy played no role in his defeat.

“I don’t think that’s why the president won the election,” Romney told Fox News, instead blaming his own “47 percent” comments and his inability to connect with minority voters.

Six months later, Romney changed his tune.

“I wish the hurricane hadn’t have happened when it did because it gave the president a chance to be presidential and to be out showing sympathy for folks,” Romney told CNN.

Hart said his study doesn’t reflect the whole of the story on Sandy’s effect in the 2012 race, but that the results say more about the pundits than the voters.

“What it says about voters, perhaps, is that it can be difficult to predict or intuit exactly how they are going to process something like Sandy,” he said.

“It depends on a number of variables and the effect may change over even shorter stretches of time. Yet pundits tend to seize on certain ‘laws’ such as presiding over a disaster makes an incumbent look presidential. But each event like Sandy deserves to be studied as a unique occurrence to help answer questions about the impact of unpredictable, large-scale events as they unfold.”

In trying to determine whether or how an event affects elections, Hart says that it is important to use experimental approaches to test the influence of “priming,” or activating thoughts of different topics, on voters’ attitudes, in addition to more traditional polling methodology.

 

Journal Reference:

  1. Joshua Hart. Did Hurricane Sandy influence the 2012 US presidential election?Social Science Research, 2014; 46: 1 DOI: 10.1016/j.ssresearch.2014.02.005

Three years since Japan’s disaster: Communities remain scattered and suffering (Science Daily)

Date: June 3, 2014

Source: Taylor & Francis

Summary: While western eyes are focused on the ongoing problems of the Fukushima Daiichi nuclear reactor site, thousands of people are still evacuated from their homes in north-eastern Japan following the earthquake, tsunami and nuclear emergency. Many are in temporary accommodation and frustrated by a lack of central government foresight and responsiveness to their concerns.

While western eyes are focused on the ongoing problems of the Fukushima Daiichi nuclear reactor site, thousands of people are still evacuated from their homes in north-eastern Japan following the earthquake, tsunami and nuclear emergency. Many are in temporary accommodation and frustrated by a lack of central government foresight and responsiveness to their concerns.

With the exception of the ongoing problems at the Fukushima Daiichi nuclear reactor, outside of the Tohoku region of Japan, the after effects of the Great East Japan Earthquake of 2011, and the subsequent tsunami and nuclear disaster, are no longer front page news. The hard work of recovery is the everyday reality in the region, and for planning schools and consultants across the country the rebuilding of Tohoku dominates practice and study.

But while physical reconstruction takes place, progress is not smooth. Many victims of the disasters and members of the wider public feel that the government is more interested in feeding the construction industry than addressing the complex challenges of rebuilding sustainable communities. This is a region that was already suffering from the challenges of an aging population, the exodus of young people to Tokyo and the decline of traditional fisheries-based industries. In the worst cases people are facing the invidious choice of returning to areas that are still saturated with radioactive fallout or never going home.

The frustration is reflected in four short pieces in Planning Theory and Practice’s Interface Section from architecture, design and planning practitioners working with communities in four different parts of Tohoku.

Christian Dimmer, Assistant Professor at Tokyo University and founder of TPF2 — Tohoku Planning Forum which links innovative redevelopment schemes in the region says:

“The current Japanese government’s obsession with big construction projects, like mega-seawalls that have already been shown to be not likely to be effective, is leading to really innovative community solutions being marginalized, the voices of communities being ignored, and sustainability cast aside.”

According to community planner and academic, Kayo Murakami — who edits this Interface section: “The troubles of the Tohoku reconstruction are not just a concern for Japan. They highlight some of the fundamental challenges for disaster recovery and building sustainable communities, in which people are really involved, all over the world.”

Journal Reference:

  1. Kayo Murakami, David Murakami Wood, Hiroshi Tomita, Satoshi Miyake, Rieko Shiraki, Kayo Murakami, Koji Itonaga, Christian Dimmer. Planning innovation and post-disaster reconstruction: The case of Tohoku, Japan/Reconstruction of tsunami-devastated fishing villages in the Tohoku region of Japan and the challenges for planning/Post-disaster reconstruction in Iwate and new planning chalPlanning Theory & Practice, 2014; 15 (2): 237 DOI:10.1080/14649357.2014.902909

Extinção de espécies está dez mil vezes mais veloz do que se imaginava, alerta pesquisa (O Globo)

JC e-mail 4963, de 30 de maio de 2014

Ação humana sobre a natureza é tão destruidora quanto o fenômeno que causou o fim dos dinossauros

A ação humana acelerou em mil vezes a extinção de espécies, de acordo com um estudo publicado esta semana na revista “Science”. Novas tecnologias para mapear o desmatamento e a destruição de habitats permitiram uma revisão dos números que serviam como base para encontros internacionais, como a Convenção sobre Diversidade Biológica (CBD).

Se não houver ações urgentes, o impacto provocado pelo homem no meio ambiente causaria a sexta maior extinção em massa da História do planeta – uma das anteriores foi o desaparecimento dos dinossauros.

Não é simples estimar quantas espécies foram extintas desde o início do século XX, já que, segundo estimativas, apenas 3,6% delas são conhecidas pelos cientistas. Para calcular a velocidade das extinções, os cientistas criaram um modelo matemático levando em conta o percentual de desaparição das espécies conhecidas em relação a sua população total e extrapolaram os resultados.

O estudo defende que a Lista Vermelha de Espécies Ameaçadas seja radicalmente ampliada – a publicação abrigaria 160 mil espécies que correm o risco de extinção, em vez de 70 mil, como ocorre hoje. Esta atualização da listagem pode levar à criação de novas políticas de conservação ambiental.

– Hoje temos novas tecnologias para detectar o desmatamento e analisar o deslocamento de cada espécie – avalia Clinton Jones, coautor do estudo e pesquisador do Instituto de Pesquisas Ecológicas do Brasil (Ipê). – A maioria vive fora das áreas protegidas, por isso a compreensão da mudança de seus ecossistemas é vital. É uma oportunidade para atualizar mapas sobre os impactos e as ameaças a cada área.

Coautor do levantamento, Stuart Limm, professor de Ecologia de Conservação da Universidade de Duke (EUA), ressalta que ainda existe uma “cratera” entre o que os pesquisadores sabem e o que ignoram sobre a biodiversidade do planeta. A tecnologia, no entanto, está preenchendo este espaço, além de estender o acesso a dados científicos para amadores. Bancos de dados on-line e até aplicativos de smartphones facilitam a identificação de espécies.

– Quando combinamos informações sobre o uso da terra com as observações de milhões de cientistas amadores, conseguimos acompanhar melhor a biodiversidade e suas ameaças – assinala. – No entanto, precisamos desenvolver tecnologias ainda mais sofisticadas para sabermos qual é a taxa de extinção das espécies.

Espaço restrito
O homem eliminou os principais predadores e outras grandes espécies. As savanas africanas, por exemplo, já cobriram 13,5 milhões de km². Agora, os leões dispõem de somente 1 milhão de km². Trata-se de um exemplo de como a restrição do espaço colabora para as extinções.

– Sabemos que muitas espécies terrestres ocupam pequenas áreas, algumas menores do que o Estado do Rio. – alerta Jones. – Espécies distribuídas em pequenas regiões estão mais vulneráveis à extinção. Precisamos concentrar nossos projetos de conservação nestes locais.

Um dos pontos mais críticos é a Mata Atlântica, uma das 34 regiões do planeta onde há maior número de espécies exclusivas – ou seja, aquelas que só ocorrem naquele local – enfrentando risco de extinção.

– A floresta remanescente está degradada e há muitas espécies exclusivas em todos os seus ambientes, do solo às montanhas – destaca Jones. – Sua preservação deve ser uma prioridade mundial.

Os oceanos são ainda menos preservados. Somente 2% de suas espécies seriam conhecidas.

(Renato Grandelle / O Globo)
http://oglobo.globo.com/sociedade/ciencia/extincao-de-especies-esta-dez-mil-vezes-mais-veloz-do-que-se-imaginava-alerta-pesquisa-12655770#ixzz33Cw1T5yR

Outra matéria sobre o assunto:

Folha de São Paulo
Homem acelerou ritmo de extinções em mil vezes
http://www1.folha.uol.com.br/fsp/cienciasaude/168399-homem-acelerou-ritmo-de-extincoes-em-mil-vezes.shtml

West Antarctic Ice Sheet Is Collapsing (Science)

12 May 2014 6:15 pm

Linchpin. Thwaites Glacier (shown) in West Antarctica is connected with its neighbors in ways that threaten a wholesale collapse if it recedes too far inland.

NASA. Linchpin. Thwaites Glacier (shown) in West Antarctica is connected with its neighbors in ways that threaten a wholesale collapse if it recedes too far inland.

A disaster may be unfolding—in slow motion. Earlier this week, two teams of scientists reported that the Thwaites Glacier, a keystone holding the massive West Antarctic Ice Sheet together, is starting to collapse. In the long run, they say, the entire ice sheet is doomed, which would release enough meltwater to raise sea levels by more than 3 meters.

One team combined data on the recent retreat of the 182,000-square-kilometer Thwaites Glacier with a model of the glacier’s dynamics to forecast its future. In a paper published online today in Science, they report that in as few as 2 centuries Thwaites Glacier’s outermost edge will recede past an underwater ridge now stalling its retreat. Their modeling suggests that the glacier will then cascade into rapid collapse. The second team, writing in Geophysical Research Letters (GRL), describes recent radar mapping of West Antarctica’s glaciers and confirms that the 600-meter-deep ridge is the final obstacle before the bedrock underlying the glacier dips into a deep basin.

Because inland basins connect Thwaites Glacier to other major glaciers in the region, both research teams say its collapse would flood West Antarctica with seawater, prompting a near-complete loss of ice in the area. “The next stable state for the West Antarctic Ice Sheet might be no ice sheet at all,” says the Science paper’s lead author, glaciologist Ian Joughin of the University of Washington (UW), Seattle.

“Very crudely, we are now committed to global sea level rise equivalent to a permanent Hurricane Sandy storm surge,” says glaciologist Richard Alley of Pennsylvania State University, University Park, referring to the storm that ravaged the Caribbean and the U.S. East Coast in 2012. Alley was not involved in either study.

Where Thwaites Glacier meets the Amundsen Sea, deep warm water burrows under the ice sheet’s base, forming an ice shelf from which icebergs break off. When melt and iceberg creation outpace fresh snowfall farther inland, the glacier shrinks. According to the radar mapping released today in GRL from the European Remote Sensing satellite, from 1992 to 2011 the Thwaites Glacier retreated 14 kilometers at its core. “Nowhere else in Antarctica is changing this fast,” says UW Seattle glaciologist Benjamin Smith, co-author of the Sciencepaper.

To forecast Thwaites Glacier’s fate, the team plugged satellite and aircraft radar maps of the glacier’s ice and underlying bedrock into a computer model. In simulations that assumed various melting trends, the model accurately reproduced recent ice-loss measurements and churned out a disturbing result: In all but the most conservative melt scenarios, a glacial collapse has already started and will accelerate rapidly once the glacier’s “grounding line”—the point at which the ice begins to float—retreats past the ridge.

At that point, the glacier’s face will become taller and, like a towering sand pile, more prone to collapse. The retreat will then accelerate to more than 5 kilometers per year, the team says. “On a glacial timescale, 200 to 500 years is the blink of an eye,” Joughin says.

And once Thwaites is gone, the rest of West Antarctica would be at risk.

Eric Rignot, a climate scientist at the University of California, Irvine, and the lead author of theGRL radar mapping study, is skeptical of Joughin’s timeline because the computer model used estimates of future melting rates instead of calculations based on physical processes such as changing sea temperatures. “These simulations ought to go to the next stage and include realistic ocean forcing,” he says. If they do, he says, they might predict an even more rapid retreat.

Antarctic history confirms the danger, Alley says: Core samples drilled into the inland basins that connect Thwaites Glacier with its neighbors have revealed algae preserved beneath the ice sheet, a hint that seawater has filled the basins within the past 750,000 years. That past flooding shows that modest climate warming can cause the entire ice sheet to collapse. “The possibility that we have already committed to 3 or more meters of sea level rise from West Antarctica will be disquieting to many people, even if the rise waits centuries before arriving.”

Tornadoes, Dust Storms and Floods: What the Hell Happened This Week? (Mashable)

Tornado-april-2014

John Smith reacts after seeing what’s left of his auto repair shop in Mayflower, Ark., Monday, April 28, 2014, after a tornado struck the town late Sunday. IMAGE: KAREN E. SEGRAVE/ASSOCIATED PRESS

The United States had its most unusual weather week of the year to date, with a massive, slow-moving storm system spawning dozens of killer tornadoes, generating widespread flooding and even whipping up hurricane force winds amid blinding dust in the Great Plains.Here are just some of the statistics from this storm system:

    • In Mississippi, the storm spawned at least 14 tornadoes on April 28, including one EF-4 tornado that damaged the city of Louisville in Winston County. At least 10 tornado-related fatalities occurred in Mississippi.
    • In Arkansas, an EF-4 tornado with winds approaching 200 mph touched down on April 27, remaining on the ground for 42 miles, causing heavy damage to the small towns of Mayflower and Vilonia.
    • Along the Alabama and Florida Gulf Coast, including the city of Pensacola, Fla., a staggering 15 to 25 inches of rain fell in just 24 hours, including an hourly rainfall rate of nearly six inches per hour. The National Weather Service said such rainfall rates made this a 1-in-200 to 1-in-500 year rainfall event, meaning there is between a 0.2 to 0.5% likelihood of such a deluge occurring in any given year. These rainfall totals were higher than records set during landfalling hurricanes.
    • The heavy rain spread up the East Coast, where New York City had its 10th-wettest calendar day on record, with 4.97 inches of rain. The wettest day on record was Sept. 23, 1882, when 8.28 inches of rain fell.
    • In the Plains, which is enduring a severe droughtmultiple days of strong winds gusting above 60 mph created blinding dust storms. In Garden City, Kan., for example, wind gusts reached 65 mph on Tuesday, making it the fourth day in a row that wind speeds exceeded 45 mph.

Below, we answered some key questions about this wild weather week.

What the heck kind of storm was this, anyway?

The storm system that helped cause the tornadoes and the flooding is known as a “closed low,” or a low pressure area in the upper levels of the atmosphere that has been cut off from the atmosphere’s steering currents and left to meander on its own. Think of it as a storm that the jet stream cast aside, for unknown reasons.

In any event, the closed low meandered above the High Plains, as the jet stream took on a bizarre, sinuous S-like shape across the U.S. and Canada.

Jet Stream IMAGE: MASHABLE

The jet stream barely changed throughout the week, keeping the closed low locked in place. The firehose-like feed of Gulf of Mexico moisture blasted northward on its eastern flank, resulting from the counterclockwise flow of air around the low pressure area.

This moist air was one of the main ingredients that helped spark the tornado outbreak on April 27 and 28, as well as the flash flooding on April 30.

BmVou9tIAAAFB98

Tweet by Andrew FreedmanThe weather pattern in the US is stuck, one swirl in Plains, another offshore. Tornado outbreak in b/w. 6:14 PM – 28 Apr 2014

 

Interestingly, the closed low that spun its way around the High Plains was mirrored by another closed low off the East Coast, in a weather pattern that seemed to have been engineered for the sole purpose of producing extreme outcomes across the U.S.

Why did the storm move so slowly?

As happens from time to time — although some suspect it is happening more frequently now — the weather pattern got stuck in place this week. An unusually large and intense area of high pressure across southeastern Canada helped ensure that the closed low above the Plains had nowhere to escape, as the S-shaped jet stream slowly slithered its way eastward toward the East Coast, like a snake slowly digesting its prey.

The S-shaped jet stream slowly slithered its way eastward toward the East Coast, like a snake slowly digesting its prey.

Blocking patterns such as this one often lead to extreme weather events, especially temperature and precipitation extremes.

For example, a blocking pattern across Europe and Russia in 2010 led to the deadly Russian heat wave that killed thousands and contributed to massive wildfires, as well as the disastrous Pakistan floods that occurred around the same time. Another blocking pattern resulted in the deadly 2003 European heat wave, which killed an estimated 40,000 people.

In the U.S., meteorologists generally view closed, meandering, almost drunk weather patterns like the one from this past week with a sense of foreboding, since they can instigate and prolong severe weather outbreaks. In other words, closed lows usually mean trouble.

How might global warming have contributed to this storm?

Given the sharp increase in greenhouse gases such as carbon dioxide, the atmosphere now contains more moisture, on average, and is warmer, on average, than it used to be. Therefore, any weather system that occurs does so in an altered setting. However, that doesn’t really tell us much, so we have to pick this event apart into its many components.

First, let’s take the blocking pattern itself. Some meteorologists and climate scientists suspect that global warming is leading to more amplified, or wavy, jet stream patterns like the one we saw this week. This can prolong weather events and lead to more extreme events. One such scientist, Jennifer Francis of Rutgers University, has published several studies arguing that rapid climate change in the Arctic, where temperatures are increasing twice as fast as the rest of the world, is behind the jet stream changes in the northern midlatitudes.

However, many atmospheric scientists are not yet sold on this hypothesis, and see little evidence of detectable jet stream changes at all. Nevertheless, this remains a subject of intense ongoing research.

Severe Weather Florida

Workers repair Euclid Street near 12th Ave. in Pensacola, Fla. that was washed out due to recent flooding, Thursday, May 1, 2014. IMAGE: JOHN RAOUX/ASSOCIATED PRESS

Next, let’s look at the tornado outbreaks. This is another subject of ongoing research, with evidence from computer modeling studies so far pointing to projected increase in the number of severe thunderstorm days in a warmer world, but a possible decrease in the number of tornado days as one of the key ingredients for tornadoes, wind shear, becomes more scarce across parts of the U.S.

Wind shear occurs when winds vary in speed or direction with height, or both. When the tornadoes struck Arkansas, Mississippi and Alabama this week, wind shear was extremely high, with low-level winds blowing from the southeast, and winds a few thousand feet off the ground coming out of the southwest. This helped create the spinning motion that eventually resulted in the tornadoes.

According to the AP, data shows that the number of days with at least one significant tornado in the U.S. has been declining since the 1970s. Yet at the same time, the number of tornado outbreak days, with 30 tornadoes or more, has increased.

Rainfall Chart

Chart showing storm total rainfall amounts (in most cases these are two-day totals) along with average monthly precipitation for April. Data comes from Climate Central and NOAA. IMAGE: MASHABLE

“Something has been happening and we’re not sure yet why,” tornado expert Harold Brooks of the National Severe Storms Laboratory told the AP.

This transition to a “boom or bust” tornado regime is consistent with some climate studies showing that even if wind shear declines, it will still be present on some days, leading to potentially larger, but less frequent, outbreaks.

Lastly, there’s the heavy rainfall and flooding to consider. Here, at least, the scientific evidence is clearer — global warming is already leading to an increase in heavy rainfall events in the U.S. and elsewhere, and this is expected to continue. The reason for this is that warmer air holds more water vapor, which provides added fuel for storms.

According to the National Climate Assessment report, which is to be released on May 6, every region in the country (except Hawaii) has seen an increase in heavy precipitation events since 1991.

This means that we better get used to events like the one that occurred in Pensacola, where total 24-hour rainfall amounts approached two feet in some spots.

SEE ALSO: America Underwater: 20 Images From a Week of Record Rains