1.9 billion people at risk from mountain water shortages, study shows
The Indus is the most important and vulnerable ‘water tower’, according to the first inventory of high-altitude water sources. Photograph: Parvesh Jain/Alamy A quarter of the world’s population are at risk of water supply problems as mountain glaciers, snow-packs and alpine lakes are run down by global heating and rising demand, according to an international […]