Albedo feedback

Warming Arctic air temperatures causing more rain, less snow, faster ice melt

Arctic air temperatures are warming faster than anywhere else on Earth. Although the level of precipitation is remaining unchanged, there is reduced snowfall in summer which is being replaced by increasing rain. The loss of summer snow and increase in rain is resulting in a positive feedback mechanism increasing warming and melting of the Arctic ice.

Albedo feedback: Climate models underestimate loss of reflectivity in the Arctic

Loss of reflectivity in the Arctic is double the estimate used in current state-of-the-art climate models according to new analysis of the Northern Hemisphere's "albedo feedback" over a 30-year period. The research comes hard on the heels that Greenland had a record melt during 2010.