Snow has thinned on Arctic sea ice, study finds

Modern measurements and historic observations provide a decades-long record showing that the snowpack on Arctic sea ice is thinning. What thinner snow will mean for the ice is not certain. Deeper snow actually shields ice from cold air, so a thinner blanket may allow the ice to grow thicker during the winter. On the other hand, thinner snow cover may allow the ice to melt earlier in the springtime.

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