China's $167 Billion Mega-Dam in Tibet Sparks Global Water and Security Fears

China has begun construction on what is set to become the world's largest hydropower dam on the Yarlung Tsangpo River in Tibet, a $167 billion project that could surpass the Three Gorges Dam in scale and output.

While China touts the dam as a major step toward renewable energy and green finance, the project has triggered alarm in neighboring countries, especially India and Bangladesh, over potential impacts on water security, river flow, and regional biodiversity. Critics also highlight concerns about environmental damage, forced relocations, and lack of transparency or consultation with affected downstream communities. The dam is expected to drive significant demand in construction, metals, and hydropower equipment sectors, boosting related stocks.

The project underscores growing geopolitical tensions in Asia over shared water resources and the environmental costs of mega-infrastructure.