Settled science: Arctic forests *prevent* global warming; also arctic forests *cause* global warming

Twitter / enviroblack: New #climate study produces ...

New #climate study produces another reason to conserve #Arctic #forests http://goo.gl/RaDWQ

Plants slow climate change by forming cloud sunshade, study finds - Times Of India

"Forests are providing an additional cooling. This is another reason why we should conserve and protect forests," said Dominick Spracklen, an expert on plants and climate change at the University of Leeds who was not involved in the study.

Flashback: Warming turns tundra to forest - University of Oxford

In just a few decades shrubs in the Arctic tundra have turned into trees as a result of the warming Arctic climate, creating patches of forest which, if replicated across the tundra, would significantly accelerate global warming.
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The change from shrubs to forest is important as it alters the albedo effect – the amount of sunlight reflected by the surface of the Earth.

In the Arctic spring and autumn much of the time shrubs are covered under a blanket of white, light-reflecting snow. In contrast, trees are tall enough to rise above the snowfall, presenting a dark, light-absorbing surface. This increased absorption of the Sun's radiation, combined with microclimates created by forested areas, adds to global warming: making an already-warming climate warm even more rapidly.