Dot Earth Blog: Warming Arctic Tundra Producing Pop-Up Forests

Warming Arctic Tundra Producing Pop-Up Forests

dotearth.blogs.nytimes.com 03 Jun '12, 5pm

Dot Earth Blog: Warming Arctic Tundra Producing Pop-Up Forests

B.C. Forbes In a warming region of the Arctic, tundra shrubs are turning into small trees, with big implications. Even as insect infestations and other factors accompanying warming have led to the “browning” of some stretches of boreal forest between temperate regions and the Arctic tundra, the tundra appears to be greening in a big way, various studies have shown. The newest such work, focused on scrubby windswept regions along Russia’s northwest Arctic coast, has found a particularly noteworthy shift is under way. In this part of the Arctic, which could be a bellwether for changes to come elsewhere with greenhouse-driven warming, what might be called pop-up forests are forming. Low tundra shrubs, many of which are willow and alder species, have rapidly grown into small trees over the last 50 years, according to the study, led by scientists from Oxford University and the ...

Full article: http://dotearth.blogs.nytimes.com/2012/06/03/warming-arct...

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