Why is the Arctic warming so quickly?
The rapid warming that has been observed in the Arctic and is projected to continue well into the future is caused by a number of factors, but one of the most important is the so-called “ice-albedo feedback.” It is uncertain what percentage of the observed warming is explained by the ice-albedo feedback, because there are other possible influences, such as natural variability in Arctic temperatures and the transport of heat to the Arctic by the oceans.