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Cities Aren’t Prepared for a Crucial Part of Sea Level Rise: They’re Also Sinking
Coastal land is dropping, known as subsidence. That could expose hundreds of thousands of additional Americans to inundation by 2050.
But increasingly, scientists are sounding the alarm on yet another problem compounding the crisis for coastal cities: Their land is also sinking, a phenomenon known as subsidence. “All the adaptation strategies at the moment that we have in place are based on rising sea levels,” says Manoochehr Shirzaei, an environmental security expert at Virginia Tech and a coauthor of the paper. But also check out the deep reds of the Gulf Coast, which has high rates of subsidence but also lower coastal elevations that already make it vulnerable to sea-level rise.
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