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Old 12-15-2011, 04:49 PM   #1
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Default Ancient Dry Spells Offer Clues About the Future of Drought

Ancient Dry Spells Offer Clues About the Future of Drought
ScienceDaily
Dec. 5, 2011

Ancient dry spells offer clues about the future of drought
excerpt from above:
Quote:
Ben Cook, a climatologist affiliated with NASA's Goddard Institute for Space Studies (GISS) and Columbia University's Lamont-Doherty Earth Observatory in New York City, highlighted new research that indicates the ancient Meso-American civilizations of the Mayans and Aztecs likely amplified droughts in the Yucatán Peninsula and southern and central Mexico by clearing rainforests to make room for pastures and farmland.

Converting forest to farmland can increase the reflectivity, or albedo, of the land surface in ways that affect precipitation patterns...
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