New geologic evidence suggests periods of extreme drought coincide with the fall of the Mayan civilization.
Drought May Have Led to Decline of Ancient Mayan Empire
source U.S. News - News http://www.usnews.com/news/newsgram/articles/2014/12/29/drought-may-have-led-to-decline-of-ancient-mayan-empire
Drought May Have Led to Decline of Ancient Mayan Empire
source U.S. News - News http://www.usnews.com/news/newsgram/articles/2014/12/29/drought-may-have-led-to-decline-of-ancient-mayan-empire
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