From Peter Sinclair:
One of the most feared of climate change "feedbacks" is the potential release of greenhouse gases by melting arctic permafrost soils. New research indicates a critical threshold of that feedback effect could be closer than we once thought.
More like this
It has come up in the comments a couple of times now, so I would like to state for the record that the following is a lousy analogy of a negative feedback. As far as I know, Richard Lindzen came up with this in his speech at the recent Heartland climate sceptic conference.
This study from the University of Michigan used eBay to determine whether a seller's reputation helped them get higher prices:
W00t, its the Big Fight, or at least its the spat du jour. Does anyone outside the little blogospheric circle care? My guess is no.
People constantly get polar amplification wrong. The most obvious mistake is to assume it applies equally at both poles. It doesn't in both models and observations: there is far more warming in the Arctic (at present, and expected in the future.
More confirmation of "background" science. (The denialists are out in force in the comments section) "In prehistory, CO2 and warming went in lock-step" http://phys.org/news/2013-02-prehistory-co2-lock-step.html
Add permafrost thawing and we have a pretty convincing recipe for disaster.
They don't know about the carbon cycle
The reality of all of that previously tied up carbon freed into the atmosphere scares the crap out of me. It should scare them too.