Three Gorges Dam success socially and economically, with the design of state-of-the-art large turbines, and a move toward limiting greenhouse gas emissions. However, the dam flooded archaeological and cultural sites, displaced some 1.3 million people, and had caused significant ecological changes including an increased risk of landslides. The dam has been controversial both domestically and abroad. A large dam across the Yangtze River was originally envisioned by Sun Yat-sen in "The International Development of China", in 1919. He stated that a dam capable of generating 30 million horsepower (22 GW) was possible downstream of the Three Gorges. In 1932, the Nationalist government, led
Xiling Gorge the length of the entire Three Gorges region, is actually a series of four different gorges: Precious Sword; Horse Lung & Ox Liver; Soundless Bell; and Shadow Play Gorges. The Three Gorges Dam was constructed at Sāndòupíng in the middle of the Xiling Gorge. Before the construction of the Three Gorges Dam and Gezhouba Dam, Xiling was known for being the most dangerous of the three gorges to travel through, with frightening whirlpools and strong rapids. Since the construction of the dams, the river's depth has increased from in some areas below the dam, to well over throughout the reservoir's