River streamflow reconstructed to 1490
A tree-ring-based study of 508 years of the U.S. Colorado River streamflow confirms droughts have occurred that were more severe than those of 2000-04.
Environment
May 26, 2006
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A tree-ring-based study of 508 years of the U.S. Colorado River streamflow confirms droughts have occurred that were more severe than those of 2000-04.
Environment
May 26, 2006
0
0
