cross-posted from: lemmy.sdf.org/post/32656229
China recently approved the construction of the world’s largest hydropower dam, across the Yarlung Tsangpo river in Tibet. When fully up and running, it will be the world’s largest power plant – by some distance.
Yet many are worried the dam will displace local people and cause huge environmental disruption. This is particularly the case in the downstream nations of India and Bangladesh, where that same river is known as the Brahmaputra.
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The Yarlung Tsangpo begins on the Tibetan Plateau, in a region sometimes referred to as the world’s third pole as its glaciers contain the largest stores of ice outside of the Arctic and Antarctica. A series of huge rivers tumble down from the plateau and spread across south and south-east Asia. Well over a billion people depend on them, from Pakistan to Vietnam.
Yet the region is already under immense stress as global warming melts glaciers and changes rainfall patterns. Reduced water flow in the dry season, coupled with sudden releases of water during monsoons, could intensify both water scarcity and flooding, endangering millions in India and Bangladesh.
The construction of large dams in the Himalayas has historically disrupted river flows, displaced people, destroyed fragile ecosystems and increased risks of floods. The Yarlung Tsangpo Grand Dam will likely be no exception.
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