2011-02-19 07:54:51new paper - Amount and timing of permafrost carbon release in response to climate warming
Dana Nuccitelli

A new study coming out of NSIDC and NOAA says the permafrost carbon feedback will turn the Arctic from a carbon source to a sink by the mid-2020s, adding 1 billion tons of carbon to the atmosphere per year by the mid-2030s.  This is probably worth a blog post.  Romm covers it here.