Looming in western US: a megadrought

February 14, 2015 7:30 PM

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Looming in western US: a megadrought

Within a few decades, a significant chunk of the US could be in for the worst drought in more than a millennium. That's if we don't change our greenhouse-gas-emitting ways, scientists say: A study co-author says the chance of a megadrought in the central and western US sometime this century is more than 80%, the AP reports.

A megadrought is one lasting at least 35 years. The data shows "more convincingly than ever before that unchecked climate change will drive unprecedented drying across much of the United States—even eclipsing the huge megadroughts of medieval times," an outside expert tells the Smithsonian.

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