HUAYNA POTOSI, BOLIVIA
August 20, 2006
At approximately 18,900 feet on Huayna Potosi, climbers work their way through crevasses and ice cliffs (aka 'seracs'). These glaciers, nourished by snowfall generated from the collision between air masses from the Pacific Ocean and the Amazon basin, have lost, on average, approximately twenty inches (0.5 m.) of thickness each year for three decades.
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