The Quelccaya Ice Cap in Peru, shown two months ago, is the world’s largest tropical glacier. Climate change threatens the complete disappearance of the Andes’ tropical glaciers within the next 20 years, putting precious water, energy and food sources at risk.
The Quelccaya Ice Cap in Peru, shown two months ago, is the world’s largest tropical glacier. Climate change threatens the complete disappearance of the Andes’ tropical glaciers within the next 20 years, putting precious water, energy and food sources at risk. Ricardo Lopez The Associated Press
The Quelccaya Ice Cap in Peru, shown two months ago, is the world’s largest tropical glacier. Climate change threatens the complete disappearance of the Andes’ tropical glaciers within the next 20 years, putting precious water, energy and food sources at risk. Ricardo Lopez The Associated Press

Michael Gerson: Hunting for a miracle on global warming

August 13, 2015 05:00 PM

UPDATED August 13, 2015 08:10 PM

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