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Spy satellites reveal extent of Himalayan glacier loss

Spy satellites reveal extent of Himalayan glacier loss

Science
Images from Cold War spy satellites have revealed the dramatic extent of ice loss in the Himalayan glaciers.Scientists compared photographs taken by a US reconnaissance programme with recent spacecraft observations and found that melting in the region has doubled over the last 40 years.The study shows that since 2000, glaciers heights have been shrinking by an average of 0.5m per year.The researchers say that climate change is the main cause."From this study, we really see the clearest picture yet of how Himalayan glaciers have changed," Joshua Maurer, from Columbia University's Lamont-Doherty Earth Observatory in New York, told BBC News. The research is published in the journal Science Advances. ...