Monday, April 2, 2012

Arctic sea ice may have passed crucial tipping point New Scientist

Arctic sea ice may have passed crucial tipping point
http://www.newscientist.com/article/dn21626-arctic-sea-ice-may-have-passed-crucial-tipping-point.html
Fred Pearce, New Scientist, 27 March 2012
The disappearance of Arctic sea ice has crossed a "tipping point" that could soon make ice-free summers a  regular feature across most of the Arctic Ocean, says a British climate scientist who is setting up an early warning system for dangerous climate tipping points.