Himalayan glaciers: climate change, water resources, and water security

The glaciers of the Hindu Kush-Himalayan (HKH) region are among the largest and most spectacular in the world. Although there is some scientific knowledge and information about the state of the glaciers of the HKH region, with implications for future water supplies, there is also significant uncertainty. Concern has been heightened by several highly visible pronouncements which upon examination proved to be highly qualitative, local in scale, or to lack any credible scientific basis. This report, published by the National Academy of Sciences, summarises the state of scientific knowledge about the Himalayan glaciers and makes recommendations and sets guidelines for the future of climate change and water security in the region.