ScienceDaily (Nov. 6, 2011) — A new study at the the University of Arizona's Laboratory of Tree-Ring Research has revealed a previously unknown multi-decade drought period in the second century A.D. The findings give evidence that extended periods of aridity have occurred at intervals throughout our past.
http://www.sciencedaily.com/releases/2011/11/111106151505.htm
The Moon is Waxing Gibbous (87% of Full)
Scientists Find Evidence of Ancient Megadrought in Southwestern U.S.
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November 07, 2011 01:54PM |
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