China has started construction on what is expected to become the world’s biggest hydropower dam, a mega project valued at approximately $167 billion. Located in the Tibet region, the dam is designed to generate enormous amounts of renewable electricity, surpassing even the Three Gorges Dam. Supporters say it will boost clean energy capacity, while critics raise environmental and geopolitical concerns. Key Facts: • Project cost: ~$167 billion • Set to become the world’s largest hydropower dam • L

The World’s Largest Megaprojects