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Permafrost thawing http://www.envirolink.org/forum/viewtopic.php?f=3&t=19424 |
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Author: | renewable guy [ Sat Jul 14, 2012 9:50 pm ] |
Post subject: | Permafrost thawing |
http://video.msnbc.msn.com/nbc-learn/42883420#42883420 Video on thawing permafrost in Alaska. |
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