melting arctic

Artic ice cap could disappear due to melting caused by global warming - it is the most effected area and the tipping point could be reached.

'Experts at the US Naval Postgraduate School in California think the situation could be even worse. They are about to publish the results of computer simulations that show the current rate of melting, combined with increased access for warmer Pacific water, could make the summertime Arctic ice-free within a decade. Dr Meier said: "For 800,000 to a million years, at least some of the Arctic has been covered by ice throughout the year. That's an indication that, if we are heading for an ice-free Arctic, it's a really dramatic change and something that is unprecedented almost within the entire record of human species."'

http://www.guardian.co.uk/climatechange/story/0,,1774814,00.html