However, recent studies – including several by the Chinese Academy of Sciences – have documented a host of serious environmental challenges to the quantity and quality of Tibet’s freshwater reserves, most of them caused by industrial activities. Deforestation has led to large-scale erosion and siltation. Mining, manufacturing, and other human activities are producing record levels of air and water pollution in Tibet. Together, these factors portend future water scarcity that could add to the region’s volatility.
Not satisfied with crapping in their own rice bowls the Chinese are turning Tibet into an open sewer too. Which, ironically, runs right down into China so once again they crap in their own rice bowl. Unfortunately for India and the rest of SE Asia much of their water also flows out of Tibet. Perhaps they will get tired of China squatting in everybody's well.
If I was them, I'd be worried.