02/26/2015 10:56 AM EST
Researchers have created the first comprehensive map of the topsy-turvy climate in the Western U.S. 21,000 years ago, when the Southwest was wet and the Northwest was dry, and are using it to test and improve the global climate models that have been developed to predict how precipitation patterns will change in the future.
Source
Vanderbilt University
This is an NSF News From the Field item.
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