-- EDIT: Cleaning up my blog, August 2015, I realized this post was not very informative and the link is now dead.
Here's the original AP article that inspired my post.
Here's a better article from May 4, 2011, that talks about the new 2011 sea level rise projections, and talks about the source-- the Arctic Monitoring and Assessment Programme. Also, five feet is the high end:
A major new multi-country scientific assessment of the Arctic has concluded that on our current greenhouse gas emissions path, we face 3 to 5 feet of sea level rise — far greater than the 2007 IPCC warned of.