The dark art of falling albedo

Ruapehu eruption 2007

A story on Mother Jones last July by John Vidal described the world’s highest glacier, Khumbu, turning visibly darker as particles of fine dust, blown by fierce winds, settled on the bright, fresh snow. “One-week-old snow was turning black and brown before my eyes,” said American geologist Ulyana Horodyskyj. Unfortunately she lacked the presence of mind to make a photographic record of this startling event. Continue Reading →