Southwest U. S. may face ‘megadrought’ this century

27 agosto 2014

Due to global warming, scientists say, the chances of the southwestern United States experiencing a decade long drought is at least 50 percent, and the chances of a “megadrought” – one that lasts over 30 years – ranges from 20 to 50 percent over the next century.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4E_y7qszfCg/140827122505.htm

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