This documentary is about what happened to the Great Plains of the United States when a combination of farming practices and environmental factors led to the Dust Bowl of the 1930s.This documentary is about what happened to the Great Plains of the United States when a combination of farming practices and environmental factors led to the Dust Bowl of the 1930s.This documentary is about what happened to the Great Plains of the United States when a combination of farming practices and environmental factors led to the Dust Bowl of the 1930s.