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AGU Chapman Conference: Megadrought in Dixieland

A never-before-seen megadrought made an appearance this morning at the last day of the AGU Chapman Conference. Paul Aharon of the University of Alabama says his latest observations are the first to suggest that drought affected the southeastern United States from about 13,000 to 11,800 years ago – during the so-called Younger Dryas cool period. 

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