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nasa warns of megadroughts orig_00001211
nasa warns of megadroughts orig_00001211

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    NASA warns of 'megadroughts' for U.S.

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NASA warns of 'megadroughts' for U.S.

There is no precedent in contemporary weather records for the kinds of droughts facing the country's West, if greenhouse gas emissions stay on course, a NASA study said. Narration and video provided by NASA.

NASA warns of 'megadroughts' for U.S.

There is no precedent in contemporary weather records for the kinds of droughts facing the country's West, if greenhouse gas emissions stay on course, a NASA study said. Narration and video provided by NASA.