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The phenomenon of Arctic amplification originally comprises an enhanced variability and amplified increase of the near-surface air temperature in the Arctic in comparison to the average-near surface warming at lower latitudes.
It also implies other serious Arctic climate changes, such as the dramatic summer melting of Arctic sea and the Greenland ice sheet, and the decrease of snow cover and surface albedo of the Greenland ice sheet. Numerous reasons for the Arctic climate change are discussed here.

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Manfred Wendisch is Professor at the Institute for Atmospheric Physics at the University of Mainz, Germany. He carried out research projects at the Institute for Tropospheric Research (IfT) in Leipzig and at the NASA Ames Center; NASA awared him a Group Achievement Award.

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