China’s $167 Billion Mega-Dam in Tibet Sparks Global Tensions Over Water Security and Environment

China has begun construction on what will be the world’s largest hydropower dam, a $167 billion project on the Yarlung Tsangpo (Brahmaputra) River in Tibet.

The dam is expected to generate more electricity than the Three Gorges Dam, but has triggered alarm in downstream countries India and Bangladesh over potential impacts on water flow, agriculture, and regional stability. Environmentalists and human rights advocates have also raised concerns about the project's ecological footprint and lack of transparency or consultation with affected communities. While China touts the dam as a major step toward renewable energy and economic stimulus, critics warn it could escalate geopolitical tensions and threaten millions who rely on the river.

The project highlights the complex intersection of energy ambitions, environmental risks, and cross-border water politics in Asia.