China’s mega-dam in Tibet is a risk in a climate of uncertainty

9 months ago

The Chinese government’s decision to construct the world’s largest hydropower dam on the Yarlung Tsangpo River in Tibet is being hailed domestically as a triumph of engineering and a leap toward carbon neutrality. But for those who understand the fragility of the Himalayan ecosystem and the geopolitical tensions that ripple downstream, this project is less a beacon of progress than a harbinger of cascading crises. Ironically, a dam marketed as a climate solution may accelerate climate disruption in the region. The Yarlung Tsangpo Grand Canyon, where the dam is being built, is one of Asia’s most biodiverse and climatically sensitive zones.

The construction and operation of this mega-dam will disrupt glacial-fed river systems, which are already under stress due to warming temperatures and retreating ice. Also alter local microclimates, as large reservoirs can increase humidity and temperature variability, affecting alpine and subtropi...

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