As she exits her hometown’s only restaurant clutching an order of cabbage and hush puppies, Carolyn Suggs Bandy pauses to boast about a place that stakes its claim as the oldest town chartered by Black Americans nearly 140 years ago. “It is sacred to me,” said Bandy, 65. With an ever-changing climate, hurricanes are likely to be more intense, and melting glaciers are causing sea levels to rise, making more flooding inevitable.