Study Shows Mangrove and Reef Restoration Yield Positive Returns on Investment for Flood Protection


A robust analysis demonstrates that nature-based solutions to reduce the damage caused by coastal flooding are cost-effective

A new analysis demonstrates that restoration of mangroves and coral reefs can be a cost-effective solution for coastal flood reduction in more than 20 countries across the Caribbean.

The study, published May 28 in the journal Ecosystem Services, used methods from the risk and insurance industry to provide rigorous valuations of these natural defenses and show that they can deliver a positive return on investment, with the benefits from reduced flood damage exceeding the costs of restoration.

The results point toward new opportunities to support restoration efforts with funds from sources that support hazard mitigation, climate adaptation, and disaster recovery, including the U.S. Federal Emergency Management Agency (FEMA).

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