1.9 billion people at risk from water supply problems, study shows

Rising demand and climate crisis threaten entire mountain ecosystem, say scientistsA 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 study.The first inventory of high-altitude sources finds the Indus is the most important and vulnerable "water tower" due to run-off from the Karakoram, Hindu Kush, Ladakh, and Himalayan mountain ranges, which flow downstream to a densely populated and intensively irrigated basin in Pakistan, India, China and Afghanistan. Continue reading...