Ten of Asia’s major rivers flow from the Tibetan Plateau and fill river basins that provide water to more than 1.35 billion people, a fifth of the world’s population. Demand for this water, propelled by population growth and rapid urbanization, is soaring while supply is under increasing pressure from accelerated melting of Himalayan glaciers and other factors. A water crisis looms. Overall, Asia has the world’s lowest per capita water availability and arable land, according to an Asia Development Bank report. Experts warn that the region needs to improve cooperation on water management soon or