Growth Collides With Rising Seas in Charleston

Charleston's planned $1.3 billion sea wall will protect the city's historic downtown peninsula while leaving lower-income neighborhoods like Rosemont exposed to rising waters. The eight-mile barrier, with Charleston contributing $455 million, excludes historically Black communities already experiencing regular flooding. Meanwhile, developers have received approval for thousands of new homes in flood-prone areas, including Long Savannah's 4,500 units and Cainhoy's 9,000-home development on filled wetlands. Charleston's sea level rose 13 inches over the past century and faces another four-foot rise by 2100. Climate Central projects 8,000 residents and 4,700 homes will face annual flooding risk by 2050. The Bridge Pointe neighborhood already underwent FEMA buyouts after successive floods, while coastal South Carolina zip codes report among the nation's highest insurance non-renewal rates.

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