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1,000-Year Record Shows Unusual Snowpack Declines in Recent Decades -- Study http://apocadocs.com/s.pl?1307819370
While record-sized snowpack and attendant flooding in the Rocky Mountains have made headlines this spring, the long-term trend for snowpack levels in the Rockies tells quite a different story, according to climate scientists.
Snowpack has in fact been declining in recent decades, and a new U.S. Geological Survey-led study shows the decrease since the 1980s is more significant than at any other time in the past 1,000 years....
After analyzing hundreds of thousands of tree rings, the researchers found only two instances of sustained low snowpack in the northern Rockies comparable to the 20th century from about 1300 to 1330 and about 1511 to 1530. However, those dips were not as severe as current declines.
"You have a pretty severe early 20th century and especially a post-1980s decline that is really isn't matched most anywhere in the paleo-climate record," Pederson said.
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[Read more stories about:
melting glaciers, water issues]
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It suspiciously corresponds with the rise of snowboarding!
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