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Climbing Mount Everest: My Search for Dirty Snow

Editor's note: This April, geologist and Ph.D. candidate Ulyana Horodyskyj will be climbing Mount Everest to determine how much soot is settling on snow at the top of mammoth glaciers, which could slow their growth at the top, even as they melt at much lower elevations.

April 7, 2014 — Ulyana Horodyskyj