Arquivo da tag: Mudanças climáticas

Is a Human “Here and Now” Bias Clouding Climate Reasoning? (N.Y. Times)

By ANDREW C. REVKIN
N.Y. Times, Dot Earth – May 8, 2011, 7:36 AM

Here’s a “Your Dot” contribution from Jacob Tanenbaum, a computer technology teacher from Tappan, N.Y., who sent the following thoughts after reading “On Birth Certificates, Climate Risk and an Inconvenient Mind“:

Our lack of ability to perceive and react to climate is not just simply a problem rooted in social norms. It goes far deeper into the evolutionary structure of the human mind. We are an animal that evolved over time somewhere in southern Africa. Our minds are set up to quickly and effectively assess an environment and perceive danger in it. This is what Macolm Gladwell calls “thin slicing” and it is very effective in many situations. What we consider higher thought processes appeared far later in our evolutionary path. When we are facing danger, it makes sense that we rely on those higher processes far less than we rely on our “gut instinct” –- those older processes that kept us safe for so much longer in our species’ history. So how does this help us understand our reactions to something like climate?

Consider this:

1. Once we are accustomed to something, change is very difficult. An animal that understands its environment can pick out subtle changes that indicate danger more effectively. An animal in new environment perceives difference, and so danger, everywhere it looks. Our reaction to climate must involve significant change in how we live our lives. This is difficult for any animal. Even us.

2. Our understanding of danger is event driven. The presence of a predator, or a fire or a storm or flood are all events. Climate is not an event, it is a trend. Weather is an event. To understand climate, you must suspend the belief that what you see outside your window is all that can be a threat to you. To understand climate you must look at the numbers over a long time and a large geographical space. That is how you can “see” a trend. This, unfortunately, may be antithetical to the way that the human animal understands danger since the threat is not immediately in front of us in a way that causes our lower thought processes to perceive a threat, pump us full of adrenalin, and push us to react.

3. Since our understanding of danger is event driven, it makes sense that our understanding of danger is also temporally driven. We are best wired to react to events that are immediate in nature and short in duration. We are wired to react to an event quickly and to make whatever adjustments are needed so that things return to what we perceive as normal. We want a short burst of adrenalin to help us get away from the threat and back to our “comfort zone.” Climate, again, asks us to suspend this part of our understanding of danger and may, again, be antithetical to the way in which we are wired to think about danger. We must react now to avoid a threat that may be several decades away. We must suspend our belief that what we perceive as normal may not be OK. We do, after all, live in an environment that has already undergone change, and our normal way of life is causing that change.

If you couple those facts with a media campaign that encourages denial as well as a media and political structure that largely reflects the way that we are wired and you have a perfect storm. So what we are really being asked to do as a species is evolve. We must evolve the ability to rely on more recent brain constructs, rather than our more primitive ones, to assess and react to danger This means we must evolve in our understanding of danger, of risk, of time, and in our ability control what we have created. But, of course, about half the U.S. does not believe in evolution, so asking us to continue the process may be beyond us. These are the things that keep me up at night.

Tanenbaum’s commentary on climate risk and response, or lack thereof, leads back to the recent Edge.org question: Do we need to bolster our cognitive toolkit?

What’s Missing From Our ‘Cognitive Toolkit’?

By ANDREW C. REVKIN
N.Y. Times, Dot Earth – January 17, 2011, 1:18 PM

This is your brain on words:

It’s clearly a pretty hard-wired system. But can we find ways to use what’s locked in our skulls to better effect? I’ll be writing more soon on that broad question, with a hint of my thoughts provided in a recent Tweet. Some variant on noosphere is clearly nigh.

In the meantime, there’s a rich discussion of aspects of this question on Edge.org, a forum for all manner of minds, curated by the agent and intellectual impressario John Brockman. Once or twice a year since 1998, Edge has tossed provocative questions to variegated batches of scientists, writers, artists and innovators.

Some examples: How is the Internet changing the way you think? What have you changed your mind about? Why? What do you believe is true even though you cannot prove it?

This year’s question, proposed by Steven Pinker and shaped with input from Daniel Kahneman, has been addressed by more than 150 people so far:

What scientific concept would improve everybody’s cognitive toolkit? (The phrase “scientific concept” has a very broad meaning, explained at the link.)

You can read my Edge contribution, centering on a concept I call anthropophilia, below, with links to relevant context added (the Edge format is straight text).

I’m in the early stages of reading the other contributions. There’s much to chew on and enjoy. Here are a few highlights:

Gerd Gigrenzer, a psychologist and director of the Center for Adaptive Behavior and Cognition at the Max Planck Institute for Human Development, is one of several contributors who focus on the need for broader, and better, appreciation of risk:

[M]any parents are unaware that one million U.S. children have unnecessary CT scans annually and that a full body scan can deliver one thousand times the radiation dose of a mammogram, resulting in an estimated 29,000 cancers per year.

I believe that the answer to modern crises is not simply more laws, more bureaucracy, or more money, but, first and foremost, more citizens who are risk literate. This can be achieved by cultivating statistical thinking. [Read on.]

He seems to be endorsing a notion explored on Dot Earth not long ago — that we find a way to go to “risk school.”

Gary Marcus, an associate professor of psychology at New York University, chooses “cognitive humility,” noting, among other things:

[H]uman beings tend almost invariably to be better at remembering evidence that is consistent with their beliefs than evidence that might disconfirm them. [Read on.]

Helen Fisher, an author and anthropologist at Rutgers University, focuses on the opportunities that would arise from a deeper awareness of the four dimensions that shape a human personality — particularly the “temperament dimension.”

We are capable of acting “out of character,” but doing so is tiring. People are biologically inclined to think and act in specific patterns — temperament dimensions. But why would this concept of temperament dimensions be useful in our human cognitive tool kit? Because we are social creatures, and a deeper understanding of who we (and others) are can provide a valuable tool for understanding, pleasing, cajoling, reprimanding, rewarding and loving others — from friends and relatives to world leaders…. [Read on.]

Maybe there’s a research opportunity in Dot Earth’s comment string — a comparative psychological deconstruction of blog commenters’ character?

Haim Harari, a physicist and former president of the Weizmann Institute of Science, writes of the “edge of the circle” in referring to today’s polarized, and largely nonproductive, policy fights:

Societies, preaching for absolute equality among their citizens, always end up with the largest economic gaps. Fanatic extremist proponents of developing only renewable energy sources, with no nuclear power, delay or prevent acceptable interim solutions to global energy issues, just as much as the oil producers. Misuse of animals in biology research is as damaging as the objections of fanatic animal right groups. One can go on and on with illustrations, which are more visible now than they were a decade or two ago. We live on the verge of an age of extremism… [Read on.]

Jay Rosen, an associate professor of journalism at New York University, provides a nice take on normalizing society’s approach to “wicked” problems. (The climate challenge, as as been discussed here before is “beyond super wicked.) Here’s an excerpt:

If we could designate some problems as wicked we might realize that “normal” approaches to problem-solving don’t work. We can’t define the problem, evaluate possible solutions, pick the best one, hire the experts and implement. No matter how much we may want to follow a routine like that, it won’t succeed. Institutions may require it, habit may favor it, the boss may order it, but wicked problems don’t care.

Presidential debates that divided wicked from tame problems would be very different debates. Better, I think. Journalists who covered wicked problems differently than they covered normal problems would be smarter journalists. Institutions that knew when how to distinguish wicked problems from the other kind would eventually learn the limits of command and control.

Wicked problems demand people who are creative, pragmatic, flexible and collaborative. They never invest too much in their ideas because they know they are going to have to alter them. They know there’s no right place to start so they simply start somewhere and see what happens. They accept the fact that they’re more likely to understand the problem after its “solved” than before. They don’t expect to get a good solution; they keep working until they’ve found something that’s good enough. They’re never convinced that they know enough to solve the problem, so they are constantly testing their ideas on different stakeholders. [Read on.]

Hmm. That last section kind of sounds like Dot Earth, or at least some variant on this process. There’s much, much more to read and discuss.

Edge doesn’t have a comment string, so I encourage you to weigh in here with your own answer to the question and evaluation of others.

As promised, here’s what I wrote for Edge (filed on deadline Friday night):

Anthropophilia

To sustain progress on a finite planet that is increasingly under human sway, but also full of surprises, what is needed is a strong dose of anthropophilia. I propose this word as shorthand for a rigorous and dispassionate kind of self regard, even self appreciation, to be employed when individuals or communities face consequential decisions attended by substantial uncertainty and polarizing disagreement.

The term is an intentional echo of Ed Wilson’s valuable effort to nurture biophilia, the part of humanness that values and cares for the facets of the non-human world we call nature. What’s been missing too long is an effort to fully consider, even embrace, the human role within nature and — perhaps more important still — to consider our own inner nature, as well.

Historically, many efforts to propel a durable human approach to advancement were shaped around two organizing ideas: “woe is me” and “shame on us,” with a good dose of “shame on you” thrown in.

The problem?

Woe is paralytic, while blame is both divisive and often misses the real target. (Who’s the bad guy, BP or those of us who drive and heat with oil?)

Discourse framed around those concepts too often produces policy debates that someone once described to me, in the context of climate, as “blah, blah, blah bang.” The same phenomenon can as easily be seen in the unheeded warnings leading to the most recent financial implosion and the attack on the World Trade Center.

More fully considering our nature — both the “divine and felonious” sides, as Bill Bryson has summed us up — could help identify certain kinds of challenges that we know we’ll tend to get wrong.

The simple act of recognizing such tendencies could help refine how choices are made — at least giving slightly better odds of getting things a little less wrong the next time. At the personal level, I know when I cruise into the kitchen tonight I’ll tend to prefer to reach for a cookie instead of an apple. By pre-considering that trait, I might have a slightly better chance of avoiding a couple of hundred unnecessary calories.

Here are a few instances where this concept is relevant on larger scales.

There’s a persistent human pattern of not taking broad lessons from localized disasters. When China’s Sichuan province was rocked by a severe earthquake, tens of thousands of students (and their teachers) died in collapsed schools. Yet the American state of Oregon, where more than a thousand schools are already known to be similarly vulnerable when the great Cascadia fault off the Northwest Coast next heaves, still lags terribly in speeding investments in retrofitting.

Sociologists understand with quite a bit of empirical backing why this disconnect exists even though the example was horrifying and the risk in Oregon is about as clear as any scientific assessment can be. But does that knowledge of human biases toward the “near and now” get taken seriously in the realms where policies are shaped and the money to carry them out is authorized? Rarely, it seems.

Social scientists also know, with decent rigor, that the fight over human-driven global warming — both over the science and policy choices — is largely cultural. As in many other disputes (consider health care) the battle is between two quite fundamental subsets of human communities — communitarians (aka, liberals) and individualists (aka, libertarians). In such situations, a compelling body of research has emerged showing how information is fairly meaningless. Each group selects information to reinforce a position and there are scant instances where information ends up shifting a position.

That’s why no one should expect the next review of climate science from the Intergovernmental Panel on Climate Change to suddenly create a harmonious path forward.

The more such realities are recognized, the more likely it is that innovative approaches to negotiation can build from the middle, instead of arguing endlessly from the edge. The same body of research on climate attitudes, for example, shows far less disagreement on the need for advancing the world’s limited menu of affordable energy choices.

Murray Gell-Mann has spoken often of the need, when faced with multi-dimensional problems, to take a “crude look at the whole” — a process he has even given an acronym, CLAW. It’s imperative, where possible, for that look to include an honest analysis of the species doing the looking, as well.

There will never be a way to invent a replacement for, say, the United Nations or the House of Representatives. But there is a ripe opportunity to try new approaches to constructive discourse and problem solving, with the first step being an acceptance of our humanness, for better and worse.

That’s anthropophilia.

Jesse Ausubel of Rockefeller University has long been fond of saying, “Because the human brain does not change, technology must.”

But many analysts now see the need to consciously intensify efforts to foster innovation — technological, social, and otherwise — to limit regrets in the next few generations.

So far, it’s not clear to me that our existing “cognitive toolkit” has allowed societies to absorb this reality. (A case in point is our “shock to trance” energy policies.)

Whether you embrace Ausubel’s technology imperative or seek ways to shift human values and norms to fit infinite aspirations on a finite planet (or both, as I do), a thorough look in the mirror appears worthwhile.

This leads back the value of the question posed on Edge, and a sustained exploration of the answers.

[Original post here.]

Major reform for climate body (Nature)

Intergovernmental panel aims to become more responsive.

By Quirin Schiermeier
Published online 16 May 2011 | Nature 473, 261 (2011)

IPCC chairman Rajendra Pachauri faced calls to quit after errors were
found in a key report.

After months of soul-searching, the Intergovernmental Panel on Climate
Change (IPCC) has agreed on reforms intended to restore confidence in
its integrity and its assessments of climate science.

Created as a United Nations body in 1988 to analyse the latest
knowledge about Earth’s changing climate, it has worked with thousands
of scientists and shared the Nobel Peace Prize in 2007. But its
reputation crumbled when its leadership failed to respond effectively
to mistakes — including a notorious error about the rate of Himalayan
glacier melting — that had slipped into its most recent assessment
report (see Nature 463, 276–277; 2010).

That discovery coincided with the furore over leaked e-mails from the
University of East Anglia’s Climatic Research Unit in Norwich, UK (see
Nature 462, 397; 2009). Some e-mails seemed to show that leading
climate scientists, who had contributed key findings to previous IPCC
reports, had tried to stifle critics. This put the panel — especially
its chairman, Rajendra Pachauri — under intense pressure. The
InterAcademy Council, a consortium of national science academies, was
commissioned to review the structure and procedures of the IPCC and to
suggest improvements to its operations (see Nature 467, 14; 2010).

The council identified the lack of an executive body as a key factor
in the IPCC’s failure to respond to the crisis. It also urged the
panel to improve the transparency of its assessments and to make its
communication and outreach activities more professional. The IPCC
adopted several minor changes at a meeting last October (see Nature
467, 891–892; 2010).

More substantial reforms were signed off last week in Abu Dhabi at a
meeting of delegates from IPCC member states. An executive committee
will be created to oversee the body’s daily operations and to act on
issues that cannot wait for full plenary meetings. The 13-strong
committee will be led by the chairman, and includes the vice-chairs
and co-chairs of its working groups and technical support units.

A new conflict-of-interest policy will require all IPCC officials and
authors to disclose financial and other interests relevant to their
work (Pachauri had been harshly criticized in 2009 for alleged
conflicts of interest.) The meeting also adopted a detailed protocol
for addressing errors in existing and future IPCC reports, along with
guidelines to ensure that descriptions of scientific uncertainties
remain consistent across reports. “This is a heartening and
encouraging outcome of the review we started one year ago,” Pachauri
told Nature. “It will strengthen the IPCC and help restore public
trust in the climate sciences.”

The first major test of these changes will be towards the end of this
year, with the release of a report assessing whether climate change is
increasing the likelihood of extreme weather events. Despite much
speculation, there is scant scientific evidence for such a link —
particularly between climate warming, storm frequency and economic
losses — and the report is expected to spark renewed controversy.
“It’ll be interesting to see how the IPCC will handle this hot potato
where stakes are high but solid peer-reviewed results are few,” says
Silke Beck, a policy expert at the Helmholtz Centre for Environmental
Research in Leipzig, Germany.

The IPCC overhaul is not yet complete. Delegates postponed a decision
about the exact terms of office of the group’s chairman and head of
the secretariat. Critics say that these terms should be strictly
limited to the time it takes to produce a single assessment report,
about six or seven years. With no clear decision on that issue,
Pachauri could theoretically remain in office beyond 2014, when the
next full report is due for release.

But the Indian economist says he has not considered staying on that
long. “My job is to successfully complete the next assessment,” he
says. “That’s what I’m solely focused on.”

Read more on climate controversy at: nature.com/climategate

Climate, Communication and the ‘Nerd Loop’ (N.Y. Times, Dot Earth)

April 14, 2011, 9:46 AM – By ANDREW C. REVKIN

Randy Olson, the marine biologist turned filmmaker and author who’s about as far from the label “nerd” as can be, had his Howard Beale “mad as hell” moment over climate miscommunication last week on his blog, The Benshi.

The piece, “The Nerd Loop: Why I’m Losing Interest in Communicating Climate Change,” is a long disquisition on why there’s too much thumb sucking and circular analysis and not enough experimentation among institutions concerned about public indifference to risks posed by human-driven global warming. He particularly criticizes scientific groups, universities, environmental groups and foundations and other sources of funding. Randy summarized his points in a short “index card” presentation (in lieu of a Powerpoint) and followup interview on Skype (above). [Stephen McIntyre of Climateaudit has posted a response, entitled “The Smug Loop.“]

In our chat I admitted freely that I’ve stepped aboard the “nerd loop” on occasion on this blog, exploring humanity’s “blah, blah, blah, bang” habit when it comes to confronting certain kinds of risks. This goes for financial bubbles and tsunamis as well as long-term, long-lasting changes in the climate.

I agree with Olson, utterly, that there’s not enough experimentation, too much fear of failure and also far too much fear and misunderstanding at scientific institutions, from America’s universities to the Intergovernmental Panel on Climate Change, about the obligation and responsibility to engage the public in a sustained way. As I’ve put it here and elsewhere many times, it’s particularly important as traditional science journalism becomes a shrinking wedge of a growing pie of communication portals.

I encourage you to watch the video and/or read Olson’s provocative essay. You won’t agree with all of what he says. I don’t, and in fact I think that research revealing the human habit of embracing or ignoring information based on predispositions and emotion, not the information, is vitally important to convey (and needs to be conveyed more creatively, too!).

But I hope you’ll recognize the merits in Olson’s argument. Here’s the summary of the “Nerd Loop” essay:

Mass communication is not a science. How many times do I have to say this? The more you think it is — or even let yourself talk about the science side of it without allocating EQUAL energy to the art side of it, the more you are doomed to take it deeper into the hole of boredom and irrelevance. Such is the state of climate science communication by the large science and environmental organizations who have bought into the magic bullet of metrics and messaging.

AND FURTHERMORE … eh, hem (a colleague at NASA just pointed this out to me) … look at this quote: “Recent advances in behavioral and decision science also tell us that emotion is an integral part of our thinking, perceptions, and behavior, and can be essential for making well-judged decisions.”

“RECENT ADVANCES”??? Social scientists think this is some sort of recent breakthrough — that humans are not robots? The quote comes from a paper in the first volume of the new Nature Climate journal. As my colleague said, “What rock did these guys crawl out from under? Give me a break all you social scientists and quit living up to your stereotype.”

Honestly.

Here are some relevant posts and links. Beware, you’re about to enter “the nerd loop” (which I, personally, see as important, even as everyone loosens up and starts experimenting):

The Psychology of Climate Change Communication” (The Center for Research on Environmental Decisions, Columbia University)

Climate, Mind and Behavior” (a series of symposiums at the Garrison Institute)

Communicating Climate Change” (The Pew Center on Global Climate Change)

Knowledge of Climate Change Across Global Warming’s Six Americas” (Yale Project on Climate Change Communication)

[Original link: http://dotearth.blogs.nytimes.com/2011/04/14/climate-communication-and-the-nerd-loop/]

Is it time to retire the term 'global warming'?

By Leo Hickman – Thursday 5 August 2010 – guardian.co.uk

As its 35th ‘birthday’ approaches, is it now time to drop the politically charged and scientifically limited term ‘global warming’ for something else?

Melting Icebergs, Ililussat, Greenland
Melting water streams from iceberg calved from Ilulissat Kangerlua Glacier in 2006 Photograph: Paul Souders/Corbis

Anniversaries are always a fairly arbitrary (yet media friendly) reason for discussing any subject. But given the fact that some people, such as the folk at RealClimate, are already “celebrating” the 35th anniversary of the coining of the term “global warming”, which is marked this Sunday, it seems as good a time as any to assess whether the term is still fit for purpose.

Names are important (just witness the “sceptic” vs “denier” hoo-ha), so it does seem a valid question to ask. I strongly doubt whether Wally Broecker realised that when his 1975 Science paper was titled “Are we on the brink of a pronounced global warming?” he knew that the term would go on to gain such international traction.

I doubt, therefore, that he gave it much thought whether it would withstand the rigours of intense scrutiny and debate that it would attract over the coming decades. (Some of the comments beneath the RealClimate piece do note that other earlier papers used the term “global warming trend”, such as this one from 1961.)

The term is still near-universally used in the US, whereas “climate change” is more commonly used here in the UK. I’m not too sure why this should be the case (reader thoughts most welcome, but it seems likely that James Hansen’s use of the term “global warming” during his famous 1988 testimony to the Senate influenced the US media, and perhaps Margaret Thatcher’s use of ‘climate change’ in her famous 1989 speech did the same here). But the two terms are largely interchangeable in common discussion, even though climate scientists will rightly argue there are subtle, but important distinctions.

One often-heard criticism is that “climate change” was invented by “warmists” to hide a perceived inconvenient truth that global temperatures aren’t actually warming. In other words, “climate change” is a clever sleight of hand that acts as a catch-all for a bevy of climactic phenomena. This ignores the inconvenient truth that the term “climate change” actually pre-dates “global warming”. After all, the full title of Broecker’s paper is “Climatic Change: Are We on the Brink of a Pronounced Global Warming?”

There’s a nicely turned history of the two terms’ usage here on the Nasa website written by Erik Conway, a historian at the Jet Propulsion Laboratory in Pasadena. It includes a paragraph on how, in the 1970s, the term “inadvertent climate modification” was common parlance. Thankfully, this was abandoned in 1979 when the National Academy of Science published its first decisive study of carbon dioxide’s impact on climate and chose to adopt the terms we still use today:

In place of inadvertent climate modification, Charney [MIT’s Jule Charney, the report’s chairman] adopted Broecker’s usage. When referring to surface temperature change, Charney used “global warming.” When discussing the many other changes that would be induced by increasing carbon dioxide, Charney used “climate change.” Within scientific journals, this is still how the two terms are used.

There have been some subtle tweaks made over the years, though. For example, on the blogosphere in particular, you will often see “AGW” used as shorthand, which adds the all-important clarifying prefix “Anthropogenic” to Global Warming.

There are also some prominent voices in the climate debate who do not particularly like the terms “global warming” or “climate change” because they don’t exude the urgency and reality of the subject they describe. For example, James Lovelock prefers the term “global heating”, whereas George Monbiot has argued that the term “climate breakdown” is a more accurate description.

Equally, on the other side of the fence, there are those who dismissively label the subject – or, rather, what they see as the mainstream reaction to the subject – as the “climate con”, “climate hoax”, “climate alarmism” or “climatism”.

Personally, I’ve never much taken to the term “global warming” (perhaps, it’s my British roots, or that, yes, it seems too narrow in its scope) so I’m happy to stick with “climate change”. I think we’ve reached a point now when we all know what we are talking about, even though the world will always be populated by the predictable pedants who love to crow that “the climate has always changed” when they know full well that what is being discussed is anthropogenic climate change. But, more importantly, to change the name now to something entirely new would only feed those conspiratorial minds that believe “climate change” is being intentionally used in some quarters in order to usurp “global warming”, in the way a corporation might undergo a rebranding to help dissociate itself from a previous mishap.

But what are you thoughts – which term do you prefer? Or perhaps you have a brand new moniker you wish to introduce to the world? And does anyone know when the term ‘climate change’ first emerged?

[Ver as mais de 400 respostas aqui]

Anthropology and Climate Science Controversies

Brad Walters (Mount Allison U.)
Anthropology News (American Association of Anthropology), vol. 51(5):36-37 (May 2010)

Enormous research effort has been invested in the study of climate change. Many scientists reveled in the acclaim that followed last-year’s awarding of the Nobel Peace Prize to the Inter-governmental Panel on Climate Change (IPCC). This year, some of these same scientists have faced an onslaught of criticism as a result of a few mistakes found in published reports of the IPCC and leaked emails from an eminent, UK-based science group that revealed an all-too-human side of the scientific endeavor (so-called “climate-gate”).

The editors of the pre-eminent science journal Nature commented that these supposedly explosive revelations would be laughable were it not for their policy consequences. Like many, they recognize that the real scandal has little to do with climate change science, but everything to do with its political ramifications.

The scientific consensus on climate change is rock solid on the most critical issues: greenhouse gas emissions from human activity are now warming the earth’s climate at a rate that is extremely rapid by historical and recent geological standards and this poses increasingly serious risks our well being (Union of Concerned Scientists, March 2010, “U.S. scientists and economists’ call for swift and deep cuts in greenhouse gas emissions,” http://www.ucsusa.org). The evidence for this general conclusion is so broad, diverse and compelling that virtually no reputable scientist doubts it.

Yet, large swaths of the American public and many opinion leaders continue to doubt the reality of climate change. A major reason for this is that the controversies over the credibility of climate science are to a large degree intentionally contrived by people and organizations with vested interests in the economic status-quo and fear of government regulation, particularly members of the oil, gas and coal industries. What we are witnessing today, according to authors James Hoggan and Richard Littlemore (Climate Cover-Up: The Crusade to Deny Global Warming) and George Monbiot (Heat), is a similar but much more ambitious replay of the tobacco industries’ campaign in the 1980s and 1990s to sew doubt about the scientific consensus on the health risks of smoking. These climate deniers understand what many social scientists do: where there is uncertainty in the minds of the electorate, the political cost of inaction falls while the cost of decisive action rises.

These climate controversies raise intriguing questions for anthropologists who may have interests in issues of public knowledge formation, risk perception, and the application of expert and non-expert knowledge in policy making. But, what motivated me to write this column is a different question: do many anthropologists also not trust the credibility of the scientific “experts” on the matter of climate change?

I came to this question as a result of recent exchanges on the Environmental Anthropology (E-Anth) List-serve that revealed a far less solid consensus on the matter than is found within the mainstream climate science community, which is dominated by natural scientists. Specifically, postings by some list members revealed a surprising lack of trust in the credibility of scientific bodies like the IPCC and the National Academy of Sciences. Even more troubling was their referencing of scientifically un-credible sources—climate skeptics’ blogs, for example—as the basis for their opinions on the status of climate science.

Anthropologists are not alone in having within their ranks credentialed scientists who espouse views on climate change that are totally unsupportable in any reasonable scientific sense. But is it possible that anthropologists are particularly vulnerable to this kind of anti-scientific way of thinking about the issue? Has the disciplines’ deep emersion in subjects like the social construction of knowledge produced social scientists with so little trust and respect for the work of natural scientists that they won’t (or can’t!) distinguish between peer-reviewed research and politically-motivated blog postings?

There is a point reached—and we are now well passed it in climate science—where theoretical arguments and empirical evidence are so overwhelmingly compelling that positions contrary to the scientific consensus are simply untenable. Perhaps it is time for the AAA to step-up as a body and officially state their position on this most critical of issues.