Global warming seen in Alaska's greening

A forest ecologist in Alaska is warning that the state is losing its forests to global warming and could soon turn out to be a state of grasslands.

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<p><a href="http://www.physorg.com/news68218434.html">Global warming seen in Alaska's greening</a></p> <p>A forest ecologist in Alaska is warning that the state is losing its forests to global warming and could soon turn out to be a state of grasslands.</p>