Southwest's Risk of 35-Year 'Megadrought' Raised in New Study

August 29, 2014 2:54 AM

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Southwest's Risk of 35-Year 'Megadrought' Raised in New Study

The U.S. Southwest faces a strong chance of a 35-year “megadrought” in this century, according to a new study that used paleoclimate and instrumental data to tweak climate models.

The research, led by Toby Ault, a Cornell University assistant professor of earth and atmospheric sciences, found that the chance of a megadrought lasting at least 35 years in this century was 20 to 50 percent, depending on how much climate change was assumed — and that for some areas of the Southwe...

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