Why you want oysters and a salt marsh between you and a hurricane


Instead of building hard seawalls to protect communities from hurricanes, some are turning to “living shorelines.” These are made out of crushed rock or oyster shells that are placed offshore in front of a wetland. There are more than 120 of these types of habitats — including in Beaufort, North Carolina — and they have shown that they can absorb 50 percent of wave energy, which can reduce the risk of loss of human life and property from flooding. This might not work for all coastal communities, but living shorelines are cheaper than the traditional seawalls.

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