"The treeless ecosystem of mosses, lichens, and berry plants is giving way to shrub land and boreal forest. As scientists study the transformation, they are discovering that major warming-related events, including fires and the collapse of slopes due to melting permafrost, are leading to the loss of tundra in the Arctic."
Bill Sherwonit reports for Yale Environment 360 January 11, 2010.
Source: YaleE360, 01/12/2010
Advertisement 
