Climate Central: Driven by a combination of natural climate variability, manmade global warming, and plain old bad luck, drought conditions are so widespread in the U.S. that it's possible to take a cross-country flight from Washington, D.C. to San Francisco -- a distance of approximately 2,400 miles -- without once overflying an unaffected area. With about 81 percent of the lower 48 states experiencing at least abnormally dry conditions, and 63 percent mired in moderate-to-exceptional drought, it's becoming harder...
URL: http://www.climatecentral.org/news/scientists-weigh-in-on-global-warmings-role-in-us-drought/
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