Epic survey finds regional patterns of soot and dirt on North American snow

Thursday, January 8, 2015 - 13:00 in Earth & Climate

Snow is not as white as it looks. Mixed in with the reflective flakes are tiny, dark particles of pollution. University of Washington scientists recently published the first large-scale survey of impurities in North American snow to see whether they might absorb enough sunlight to speed melt rates and influence climate.

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