World's Biggest Dam:
4-11-21, The nation of China is facing another claim of cover-up. The world's largest dam is China's THREE GORGES DAM constructed in 2012. It's a hydroelectric gravity dam that spans the Yangtze River in central China. It's appx 1.4 miles long and 607 feet high. It's five times larger than the U.S.'s Hoover Dam.  It's rumored to be on brink of collapse risking tidal wave with consequences of tsunami-like wave wiping out cities and millions of acres of farmland possibly leading to famine-like conditions.
It's claimed the dam has slowed the Earth's rotation. 
History of Landslides
Report from Scientific American: Nine years after construction began, in June 2003, The Yangtze Three Gorges Development Corp filled the reservoir with 445 ft of water, the first of three increments. The result is a narrow lake 410 miles long and 3,600 feet wide -- twice the width of the natural river channel. Scientists' early warnings came true just a month later, when around 700 million cubic ft of rock slid into the Qinggan River, just two miles from where it flows into the Yangtze, spawning 65-ft waves that claimed the lives of 14 people. Despite the devastating results, in 2006 the corporation raised the water level further — to 512 ft. Since then, the area has experienced dozens of landslides along one 20-mile stretch of riverbank. The ground gave out near the entrance to a railway tunnel in Badong County when 4,000 cubic yards of earth and rock tumbled onto a highway burying a bus, killing at least 30 people. Geologist Fan Xiao at the Geological Exploration & Exploitation of Mineral Resources Bureau in Sichuan says the landslides are directly linked to filling the reservoir. 
Global Impact Should the Dam Fail
Report from Heritage Foundation: Should the dam fail, the global economic impact would be huge, not only due to supply chain disruptions, but the likely financial effects of such a massive catastrophe. While China could import food to replace flooded stocks, that in turn would create global impacts on world food markets. It would also mean the reallocation of substantial Chinese foreign currency reserves from other projects, such as the Belt and Road Initiative, which in turn would affect a range of lesser developed countries that would lose projects & Chinese funding. 
Videos here: https://www.youtube.com/watch?v=celwTXJifJA
and here: https://www.youtube.com/watch?v=7z-zw9lQuLU
 Wikipedia: https://en.wikipedia.org/wiki/Three_Gorges
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