#GlobalWarming has significantly increased the #risk of "mega-#flooding" in #California and #Western #UnitedStates, a #UCLA #study #published in the #journal of #Science Advances said. telesurenglish.net/news/Glob…

Aug 15, 2022 · 12:29 PM UTC · Twitter Web App

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The #study, co-authored by #climate #scientists Xingying Huang and Daniel Swain, and co-funded by the #California Department of #Water #Resources, warned that this #future deluge could be as devastating as #California's "Great Flood" of 1862,
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in which over 30 days of unceasing #rain unleashed a #flood of biblical proportions that left #California's Central #Valley #underwater. In 1862, the entire valley, an area covering 13,000 to 16,000 kilometers, was inundated by #water with depths up to 30 feet (9.1 meters),
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completely submerging #telegraph poles that had just been installed between #SanFrancisco and #NewYork. But the #stakes are astronomically higher now, the #researchers warned. A #flood of that #magnitude today would inundate parts of #LosAngeles, #Fresno, #Stockton
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and #Sacramento and overwhelm the levees, #water shunts, storm drains and #reservoirs that comprise #California's extensive #water #system. "Every major #population center in #California would get hit at once -- probably parts of #Nevada
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and other adjacent states, too," warned study co-author Swain. And with a state #population soaring from 500,000 in 1862 to 40 million in 2022, a mega-#flood could potentially displace up to 10 million #people.
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In 1862, at least 4,000 #people were estimated to have been killed in the #floods, roughly 1 percent of the state #population at the #time.
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