The Tibetan Plateau, known as the “water tower” of Asia, supplies freshwater for nearly 2 billion people who live downstream. New research led by scientists at Penn State, Tsinghua University and the University of Texas at Austin projects that climate change, under a scenario of weak climate policy, will cause irreversible declines in freshwater storage in the region, constituting a serious threat to the water supply for central Asia, Afghanistan, Northern India, Kashmir and Pakistan by the middle of the century. “The prognosis is not good,” said Michael Mann, distinguished professor of atmospheric science at Penn State. “In a ‘business as usual’ scenario, where we fail to meaningfully curtail fossil fuel burning in the decades ahead, we can expect a substantial — that is, nearly 100% loss — of water availability to downstream regions of the Tibetan Plateau. I was surprised at just how large the predicted decrease is even under a scenario of modest climate policy.” - Penn State
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