Earth & climate

Black Sunday and the Dust Bowl

14 April 1935

On 14 April 1935, a monstrous wall of dust rolled across the southern Great Plains of the United States, turning day to night in Oklahoma, Texas, Kansas and neighbouring states. Years of drought combined with ploughing of the prairie grass had left bare soil to blow away. Hundreds of thousands of people abandoned their farms during the 1930s, many migrating to California, as described in John Steinbeck's novel The Grapes of Wrath. The disaster led Franklin Roosevelt's government to set up the Soil Conservation Service and to promote methods such as contour ploughing and shelterbelts.

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