"...this modeling may actually understate the problem, because the model does not fully incorporate other positive feedbacks that can occur, for example, if increased temperatures caused a large-scale melting of permafrost in arctic regions and subsequent release of large quantities of methane, a very potent greenhouse gas. Including that feedback “is just going to make it worse,” [study coauthor Ronald] Prinn says."
Published in The American Meteorological Society’s (peer-reviewed) Journal of Climate, by the Massachusetts Institute of Technology's Joint Program on the Science and Policy of Climate Change. Read about it in this post on Joe Romm's blog Climate Progress.
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