China recently authorized the construction of the largest dam in the world, which is expected to cost about $137 billion, on the Brahmaputra River in Tibet, close to the Indian border. Concerns about the dam's possible effects on water flow and regional stability have been raised by other nations,

China has approved the construction of what will be the world's largest hydropower dam, kicking off an ambitious project on the eastern rim of the Tibetan plateau that could affect millions downstream in India and Bangladesh.

Beijing's approval of a controversial mega dam in the lower reaches of the Yarlung Tsangpo River, which flows from Tibet autonomous region into India, has sparked concerns about the environmental impact of the project,