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| Colorado River Streamflow History Reveals Megadrought Before 1490 |
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 vox_mundi writes "An epic drought during the mid-1100s dwarfs any drought previously documented for a region that includes areas of Arizona, Colorado, New Mexico, Utah and Wyoming.
The six-decade-long drought was remarkable for the absence of very wet years. At the core of the drought was a period of 25 years in which Colorado River flow averaged 15 percent below normal.
The Colorado supplies water for cities and agriculture in seven western states in the U.S. and two states in northwestern Mexico. Los Angeles, Las Vegas, Denver, Phoenix, Tucson and Albuquerque are among the many cities dependent on Colorado River water.
The Intergovernmental Panel on Climate Change predicted in a recent report that the southwestern U.S. will become hotter and drier as the climate warms.
link"
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Posted on Friday, May 18 @ 23:35:00 PDT by aaron |
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| "Colorado River Streamflow History Reveals Megadrought Before 1490" | Login/Create an Account | 41 comments | Search Discussion |
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