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Pre-Columbian America was plagued by decades-long megadroughts

Pre-Columbian America was plagued by decades-long megadroughts

https://wattsupwiththat.com/2018/08/09/pre-columbian-america-was-plagued-by-decades-long-megadroughts/

In the August issue of Physics Today, climate scientists Toby Ault and Scott St. George share a pair of startling research findings. Between roughly 800 and 1500 CE, the American West suffered a succession of decades-long droughts, much longer than anything we’ve endured in modern history. And statistical models suggest that, as the climate warms, such megadroughts…

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