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UC Irvine Expert
Charlie Zender explains what makes snow dirty and how society can keep it clean.
About this expert
Charlie Zender, associate professor of Earth system science, studies the effects of airborne chemicals, soot and clouds on climate change. Specks of soot in the atmosphere can warm the climate when they fall to the ground and darken snow and ice. More: www.ess.uci.edu/~zender/