Dr. John All is a mountaineer and scientist who nearly lost his life after falling more than 20 meters down an icy crevasse while researching how quickly the Himalayas are melting.
A week after a catastrophic flood struck the Nepal-Tibet border, he warns the tragedy we’ve seen in the region could be repeated as pollution and rising temperatures turn mountain ice into water.
Today, he speaks about researching climate change in treacherous terrain, and how soon the Himalayan glaciers could disappear.
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John All, mountaineer and co-founder of the American Climber Science Program
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