Water Warning: The Looming Threat of the World’s Aging Dams
Tens of thousands of large dams across the globe are reaching the end of their expected lifespans, leading to a dramatic rise in failures and collapses, a new UN study finds. These deteriorating structures pose a serious threat to hundreds of millions of people living downstream.
Who would want to live downstream of the 125-year-old Mullaperiyar Dam, nestled in a seismic zone of the Western Ghats mountains in India? The 176-foot-high relic of British imperial engineering cracked during minor earthquakes in 1979 and 2011. According to a 2009 study by seismic engineers at the Indian Institute of Technology, it might not withstand a strong earthquake larger than 6.5 on the Richter scale.
新春走基层丨三门峡：戴口罩、扫绿码、网上预约……这些是您逛景区的 标配 -大河网
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从水来土掩、一夫当关到借力打力，中国10万座大坝的诞生
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