Radiative forcing and albedo feedback from the Northern Hemisphere cryosphere between 1979 and 2008

The dramatic shrinking of Arctic sea ice and the Northern Hemisphere's glaciers and snowfields has reduced the radiation of sunlight back into space more than scientists previously predicted, according to a new study in the journal Nature Geoscience. As a result, the ocean and land mass exposed by the melting ice and snow have absorbed more heat, contributing to global warming.

Radiative forcing and albedo feedback from the Northern Hemisphere cryosphere between 1979 and 2008 : Nature Geoscience : Nature Publishing Group