Like the Arctic and Antarctic poles, the Himalayas are warming much faster than other parts of the world, at a rate estimated to be up to three times the global average. Warming has been rapid over the past century. Though temperatures have varied depending on location, they have averaged 1.8 degrees Fahrenheit higher since 2000 compared with the 25-year period preceding it. The Himalayas thus offer a natural experiment: They are showing the havoc that can occur if we continue business as usual with greenhouse gas emissions.
Severe warming in parts of this towering mountain range, which stretches for 1,500 miles across Asia, from Pakistan to Bhutan, is demonstrating, for example, how climate change can drastically disrupt a region’s water cycle. Glaciers have lost mass and retreated significantly. Even moderate projections predict that the region’s massive ice flows will decline by approximately 60 percent by the end of this century, with a large number of glaciers disappearing outright.