For the first time in tens of thousands of years, Siberia’s frozen land is undergoing a thaw.
permafrost

Permafrost Melts for First Time in Millenia
(via yourecosource.com)
Submitted by Krista White on Thu, 2007-09-27 04:00. | Tags: nature | carbon dioxide | climate change | permafrost

Feedback Loops: Melting Permafrost
(via www.celsias.com)
As fascinating as it might be to see a scientist potentially holding a pile of mammoth-poo in his hands, this is not a good sign.
Submitted by Celsias on Tue, 2007-09-18 16:48. | Tags: science | Alaska | arctic | canada | melt | permafrost | russia | thaw | tundra | warm