<human>:  Where did the dust bowl originate?
<bot>: The Dust Bowl originated in the Great Plains of the United States. It was a severe drought in the midwestern United States in the 1930s. The drought was caused by a combination of a lack of rainfall and a lack of soil moisture. It was the worst drought in the history of the United States. It affected more than 40% of the land area of the United States, causing massive crop failures and resulting in the migration of many people from the region.