With sea levels rising, once-a-century floods may become once-in-20-years events. One solution: huge storm-surge barriers.
By 2050, stronger storms and rising sea levels may make the flood that previously hitNew York once every 100 years a once-in-20-years event, according to GISS. With a possible three-foot sea level rise by 2100, flooding could occur every four years. "Our old ideas about climate may have to change," he says. "We need to be open to all possibilities."
"Rather than individually shoring up the city's many vulnerabilities, the better solution is to use the region's topography, say engineer Douglas Hill and Malcolm Bowman, head of the Storm Surge Research Group at Stony Brook University. Three barriers placed at strategic "choke points" -- the Verrazano Narrows, Throgs Neck, and the Arthur Kill - would protect all of Manhattan and half the entire flood-prone area, they say."
Thanks to Ashwani Vasishth
FULL STORY: How to keep New York afloat
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