Sunday, February 23, 2014

Severe drought? California has been here before

A thousand-year tree-ring study shows that deep droughts come with the territory. Now the issue is how to deal with them.



The skinny rings of ancient giant sequoias and foxtail pines hold a lesson that Californians are learning once again this winter: It can get very dry, sometimes for a single parched year, sometimes for withering decades.



via L.A. Times - Science http://ift.tt/1flj5GQ

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