The Hindu Kush Himalaya: An endangered “water tower” in a warming world Mountain systems, such as the Hindu Kush Himalaya, European Alps and the Andes, play a critical role for the 1.3 billion people who live either within or downstream from their ranges, but also half the Earth’s biodiversity. This is a consequence of the read more Cover Story Global Geneva. Mayewski, More, Norchi. The Hindu Kush Himalaya: An endangered “water tower” in a warming world