The dust bowl /

The line between fertile grassland and desert wasteland can be very thin. What was once green and verdant can become desolate and barren in a blink of geologic time. In the 1930s, a severe drought and poor agricultural methods turned an area of the southwestern United States into a virtual dust bowl...

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Bibliographic Details
Format:	Video
Language:	English
Language Notes:	In English.
Published:	Dallas County, TX : Dallas County Community College District, 2012.
Series:	Academic Video Online
Subjects:	Geology. Earth sciences. Dust Bowl Era, 1931-1939. Crops and soils. Droughts. Wind erosion. Dust storms. Environmental disasters. Great Plains. Géologie. Sciences de la terre. Dust Bowl, États-Unis, 1931-1939. Cultures et sols. Sécheresses. Érosion éolienne. Tempêtes de poussière. Catastrophes écologiques. Grandes Plaines. Dust Bowl Era, 1931-1939 Crops and soils Droughts Dust storms Earth sciences Environmental disasters Geology Wind erosion Great Plains 1931-1939 documentary film. Documentary films Documentary films. Documentaires.
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