Coastal wetlands provide significant cost avoidance during extreme storm events. A regional study across 12 affected states showed that during Hurricane Sandy in 2012, wetlands avoided $625 million in direct flood damages.
Narayan, Siddharth, Michael W. Beck, Paul Wilson, Christopher J. Thomas, Alexandra Guerrero, Christine C. Shepard, Borja G. Reguero, Guillermo Franco, Jane Carter Ingram, and Dania Trespalacios. “The value of coastal wetlands for flood damage reduction in the northeastern USA.” Scientific reports 7, no. 1 (2017): 9463. https://doi.org/10.1038/s41598-017-09269-z
