Posted AT 6:21 PM EDT on 31/10/07
New global warming villain fingered: Trees
Forests have long been thought of as an ally in the fight against global warming, but a new study suggests that Canada's boreal forest may in fact be releasing more greenhouse gases than it absorbs.
“The boreal forest, at least in the north-central part of Manitoba, has gone from a weak carbon sink to a weak carbon source,” said Dr. Tom Gower of the University of Wisconsin, whose paper is being published Thursday in the journal Nature.
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