USGS CMG InfoBank Geology School: drought

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Title	Comment	Keywords
Dust Bowl	20:49 - 21:42 (00:53) / 1.1 MB	desertification, desert, "United States", "Great Plains", "ecological balance", rainfall, plant, agriculture, grazing, soil, drought, "dust bowl", "soil conservation"
Sahel	21:42 - 23:02 (01:20) / 2.3 MB	desert, desertification, Africa, Sahel, Sahara, semi-arid, rainfall, grazing, drought, plant, soil, cattle, "dust storm", dune, Ethiopia, Sudan, human
Large Migration Disaster	23:02 - 23:44 (00:42) / 1.8 MB	technology, drought, water, Sahel, livestock, humans, grazing, cattle, crop
Glaciology	24:57 - 25:47 (00:50) / 1.0 MB	"James Sadd", glacier, "glacial ice", "glacial cycle", "carbon dioxide", geologist, "global climate change", "Greenhouse Effect", prediction, rainfall, weather, hurricane, drought, "global warming", human

Geology School Keywords

U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/drought.html
Page Contact Information: InfoBank staff
Page Last Modified: Tue Feb 5 05:12:56 PST 2013 (chd)