Permafrost - what is it

What is permafrost? What happens when permafrost thaws? This animation answers these questions. Scientists at the Alfred Wegener Institute conduct annual expeditions to the polar regions in order to understand the diverse processes in the permafrost an to precisely assess the impacts of it´s degradation. Copyright: Alfred Wegener Institute / Lars Grübner This animation was created in cooperation with the agency eventfive GmbH, Bremen. http