NOAA- 2018 Arctic Report Card

The Arctic is warming at more than twice the rate of the global average. Human-caused climate change is transforming the Arctic, both physically and biologically. This enhanced warming is known as Arctic Amplification, and it’s caused by multiple feedback loops, including less snow and ice to reflect incoming sunlight, warmer oceans releasing heat into the atmosphere later into the fall, and increasing winter cloudiness, which moderates cold conditions.

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