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Source: BBC News, December 11, 2007
By Jonathan Amos
Science reporter, BBC News, San Francisco

Arctic summers ice-free 'by 2013'

NOTE: Because Arctic ice is already floating, melting this does not directly add to sea level rise. However, the Arctic ice melting changes the reflectivity of the Earth, adding to warming on a global scale.

"Scientists in the US have presented one of the most dramatic forecasts yet for the disappearance of Arctic sea ice.