Albedo effect

The fraction of light reflected by a surface back into space. Ice and other white surfaces have a high albedo (close to 1) while dark surfaces have a low albedo (close to 0). An albedo of 1 means that all incoming energy is reflected back out. An albedo of 0 means that the surface is absorbing all incoming energy. Albedos closer to 0 will cause more warming because they are absorbing more incoming energy.”As sea-ice and snow coverage in the Arctic begins to shrink with global warming, the albedo lowers, the exposed ocean and land masses absorb more heat, and global temperatures increase. This is a self-reinforcing effect, as the higher temperatures will cause more ice melt, and the cycle starts again. Climate changes are thus of particular importance in the Arctic, as they have the potential to affect temperature changes globally.”