http://www.bbc.co.uk/news/science-environment-39329304" onclick="window.open(this.href);return false;
Looking at the heat map, I wonder if the 'cooler then average' area off Greenland has anything to do with melting glaciers, and may be have an effect on the Gulf Stream:
https://en.wikipedia.org/wiki/Shutdown_ ... irculation" onclick="window.open(this.href);return false;