Arquivo da tag: Dust Bowl

5 Eye-Opening Facts About the Dust Bowl (History Facts)

Original post

Dust storm, circa 1930
Credit: Historical/ Corbis Historical via Getty Images

Timothy Ott

August 20, 2026

Although the Great Depression was a challenging time for most Americans, a special distinction can be made for those who weathered the unique conditions of the Dust Bowl. Generally encompassing a 300,000-square-mile region of Texas, Oklahoma, Kansas, Nebraska, Colorado, and New Mexico — although its effects were also felt farther north — the Dust Bowl was marked by the relentless accumulation of dry soil that blackened skies and ruined crops.

In the wake of poor farming practices and unusually low levels of rainfall, topsoil from the Great Plains swirled through towns, piled up on fence posts, and seeped through building cracks. People and livestock alike suffered adverse health effects from inhaling the contaminated air, although the status quo apparently suited the swarms of grasshoppers who devoured what remained of crop rows.

While it sounds like something out of a dystopian novel, the Dust Bowl was very much a real experience for millions of people who had to decide between sticking things out in an inhospitable climate or abandoning their homes for an unknown future. Here are five facts about what it was like to live through those years of uncertainty.

Credit: Smith Collection/Gado/ Archive Photos via Getty Images 

The Catastrophe Was Caused by Poor Farming Practices 

The Dust Bowl’s roots can be traced back to the late 19th century: Federal efforts such as the Homestead Act of 1862 lured settlers to the Great Plains, and by the early 1900s, much of the prairie’s native grasslands, which helped retain precious water in the soil, had been dug up. The problem intensified with increased demand for wheat during World War I, which led to a focus on this particular yield at the expense of sustainable crop rotation, while improved farming machinery such as the gasoline-powered tractor lured even more “suitcase farmers” to arid areas with the hope of cashing in on crops. 

The ramifications of this overfarming became apparent when the region was stricken by a series of droughts beginning in 1930, leaving wide swaths of overturned earth dry and loose, vulnerable to blowing away in high winds. The disaster impoverished the farmers, who struggled to grow suitable crops and attract customers amid the financial depths of the Depression.

Credit: PictureLux / The Hollywood Archive/ Alamy Stock Photo

Enormous Dust Storms Traveled All the Way to the East Coast

Beyond the endless rows of parched farmland, the starkest visual indication of an ecological system gone awry was the series of dust storms that swept across the Great Plains for much of the 1930s. The frequency of storms increased as the decade progressed, going from 14 in 1932 to a peak of 72 in 1937. 

While some of these were milder and more localized “sand blows,” others were enormous “black blizzards” that wiped out visibility altogether as they ripped across several states. One such tempest, which commenced in the Northern Great Plains on May 11, 1934, carried an estimated 350 million tons of silt all the way to the Eastern Seaboard, with ships a few hundred miles offshore even noting the accumulation of dust on their decks. But the most notorious of the storms was the one that roared south from the Oklahoma Panhandle at winds reaching 60 mph on April 14, 1935. The event came to be known as “Black Sunday” and yielded the first known use of the term “Dust Bowl” in newspapers.

Credit: Photo 12/ Universal Images Group via Getty Images 

Migrant “Okies” Faced Discrimination 

Unsurprisingly, the unforgiving conditions prompted many residents of the Dust Bowl’s hardest-hit regions to uproot their families in search of better pastures farther west. Approximately 2.5 million people moved from their Great Plains homes throughout the 1930s, with the notable share of Oklahomans giving rise to the pejorative nickname of “Okies” for any migrants who departed the desolate Midwest. 

The 200,000 or so migrants who journeyed to California found no immediate improvement to living conditions; those who sought to eke out a living picking fruit in the San Joaquin Valley often were forced to live amid unsanitary conditions in tents and shantytowns, while those who ventured south to Los Angeles were for a time turned away by the LAPD’s “bum brigade.” 

Although later research showed that the population decrease of the Dust Bowl states reflected both the continuation of post-World War I migratory trends and the lack of new arrivals to the area, there’s no doubt that Dust Bowl migrants marked a distinct subset of Americans who struggled during the Depression era.

Credit: Universal History Archive/ Universal Images Group via Getty Images 

FDR Launched an Array of Programs To Aid Farmers

As part of the sweeping legislation passed under President Franklin D. Roosevelt’s New Deal, the federal government enacted a series of programs geared toward farmers ravaged by the Dust Bowl. The Emergency Farm Mortgage Act and Farm Credit Act in 1933 allowed recipients to refinance their loans and access new lines of credit, while the Farm Security Administration of 1937 offered educational opportunities and health care plans for participants. 

Other programs sought to undo some of the environmental issues at play. The Soil Erosion Service, which became the Soil Conservation Service in 1935, provided instruction on sound farming techniques such as crop rotation, and awarded subsidies for farmers to leave certain areas idle to let the land recover. Then there was the massive Shelterbelt Project, which tapped unemployed laborers to plant more than 220 million trees across a 1,300-mile row from Texas to Canada in an attempt to block winds from whipping up the dreaded dust storms.

Credit: Photo by Dorothea Lange/ ​​Pictorial Press Ltd/ Alamy Stock Photo

The Dust Bowl Produced Some of the Most Enduring Art of the Century

As human suffering can be a catalyst for creativity, it’s not surprising that some of the most powerful American art of the 20th century emerged from the Dust Bowl years. Photographer Dorothea Lange showcased the toll of hard living on her subjects, as exemplified by her famed “Migrant Mother” portrait from 1936. Painter Alexandre Hogue supplied his “psychorealistic” view of the era, with works highlighting the desolate landscapes and emaciated cattle of the Great Plains. Author John Steinbeck captured the desperation of the displaced Joad family in his 1939 masterpiece The Grapes of Wrath. And folk singer Woody Guthrie, who endured Black Sunday from his north Texas home and actually lived the life of the migrant “Okie,” relayed the heartache of those lean years with his first commercial album, 1940’s Dust Bowl Ballads.

NASA study finds 1934 had worst North American drought of last thousand years (Science Daily)

Date: October 14, 2014

Source: NASA

Summary: A new study using a reconstruction of North American drought history over the last 1,000 years found that the drought of 1934 was the driest and most widespread of the last millennium. Using a tree-ring-based drought record from the years 1000 to 2005 and modern records, scientists found the 1934 drought was 30 percent more severe than the runner-up drought (in 1580) and extended across 71.6 percent of western North America.

This photo shows a farmer and his two sons during a dust storm in Cimarron County, Oklahoma, 1936. The 1930s Dust Bowl drought had four drought events with no time to recover in between: 1930-31, 1934, 1936 and 1939-40. Credit: Arthur Rothstein, Farm Security Administration

A new study using a reconstruction of North American drought history over the last 1,000 years found that the drought of 1934 was the driest and most widespread of the last millennium.

Using a tree-ring-based drought record from the years 1000 to 2005 and modern records, scientists from NASA and Lamont-Doherty Earth Observatory found the 1934 drought was 30 percent more severe than the runner-up drought (in 1580) and extended across 71.6 percent of western North America. For comparison, the average extent of the 2012 drought was 59.7 percent.

“It was the worst by a large margin, falling pretty far outside the normal range of variability that we see in the record,” said climate scientist Ben Cook at NASA’s Goddard Institute for Space Studies in New York. Cook is lead author of the study, which will publish in the Oct. 17 edition of Geophysical Research Letters.

Two sets of conditions led to the severity and extent of the 1934 drought. First, a high-pressure system in winter sat over the west coast of the United States and turned away wet weather — a pattern similar to that which occurred in the winter of 2013-14. Second, the spring of 1934 saw dust storms, caused by poor land management practices, suppress rainfall.

“In combination then, these two different phenomena managed to bring almost the entire nation into a drought at that time,” said co-author Richard Seager, professor at the Lamont-Doherty Earth Observatory of Columbia University in New York. “The fact that it was the worst of the millennium was probably in part because of the human role.”

According to the recent Fifth Assessment Report of the Intergovernmental Panel on Climate Change, or IPCC, climate change is likely to make droughts in North America worse, and the southwest in particular is expected to become significantly drier as are summers in the central plains. Looking back one thousand years in time is one way to get a handle on the natural variability of droughts so that scientists can tease out anthropogenic effects — such as the dust storms of 1934.

“We want to understand droughts of the past to understand to what extent climate change might make it more or less likely that those events occur in the future,” Cook said.

The abnormal high-pressure system is one lesson from the past that informs scientists’ understanding of the current severe drought in California and the western United States.

“What you saw during this last winter and during 1934, because of this high pressure in the atmosphere, is that all the wintertime storms that would normally come into places like California instead got steered much, much farther north,” Cook said. “It’s these wintertime storms that provide most of the moisture in California. So without getting that rainfall it led to a pretty severe drought.”

This type of high-pressure system is part of normal variation in the atmosphere, and whether or not it will appear in a given year is difficult to predict in computer models of the climate. Models are more attuned to droughts caused by La Niña’s colder sea surface temperatures in the Pacific Ocean, which likely triggered the multi-year Dust Bowl drought throughout the 1930s. In a normal La Niña year, the Pacific Northwest receives more rain than usual and the southwestern states typically dry out.

But a comparison of weather data to models looking at La Niña effects showed that the rain-blocking high-pressure system in the winter of 1933-34 overrode the effects of La Niña for the western states. This dried out areas from northern California to the Rockies that otherwise might have been wetter.

As winter ended, the high-pressure system shifted eastward, interfering with spring and summer rains that typically fall on the central plains. The dry conditions were exacerbated and spread even farther east by dust storms.

“We found that a lot of the drying that occurred in the spring time occurred downwind from where the dust storms originated,” Cook said, “suggesting that it’s actually the dust in the atmosphere that’s driving at least some of the drying in the spring and really allowing this drought event to spread upwards into the central plains.”

Dust clouds reflect sunlight and block solar energy from reaching the surface. That prevents evaporation that would otherwise help form rain clouds, meaning that the presence of the dust clouds themselves leads to less rain, Cook said.

“Previous work and this work offers some evidence that you need this dust feedback to explain the real anomalous nature of the Dust Bowl drought in 1934,” Cook said.

Dust storms like the ones in the 1930s aren’t a problem in North America today. The agricultural practices that gave rise to the Dust Bowl were replaced by those that minimize erosion. Still, agricultural producers need to pay attention to the changing climate and adapt accordingly, not forgetting the lessons of the past, said Seager. “The risk of severe mid-continental droughts is expected to go up over time, not down,” he said.


Journal Reference:

  1. Benjamin I Cook, Richard Seager, Jason E Smerdon. The Worst North American Drought Year of the Last Millennium: 1934. Geophysical Research Letters, 2014; DOI: 10.1002/2014GL061661