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News Release 08-196
Dry Spells Spelled Trouble in Ancient China
Weakening of summer monsoons to blame
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![Graph showing the comparison of Asian monsoons, Northern Hemisphere temperatrues, and glacier data.](/news/mmg/media/images/monsoon1_f.jpg)
Asian monsoons, Northern Hemisphere temperatures and alpine glacier data across 1,800 years are compared.
Credit: Adapted from Zhang, Pingzhong et al., Science, 11/7/2008 by Zina Deretsky, National Science Foundation
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![Nov. 7, 2008 cover of Science magazine.](/news/mmg/media/images/monsoon2_f.jpg)
The researchers' findings are published in the Nov. 7, 2008, issue of Science.
Credit: Copyright 2008 AAAS
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