Mangrove forests are nature's coastal shields

Mangrove forests are vital natural shields, protecting coastlines from rising sea levels. These dense thickets of salt-tolerant trees slow waves and trap sediment, building up land and preventing erosion. This natural process allows mangroves to keep pace with the estimated 3.7 millimeters per year global sea level rise. For instance, in the Sundarbans, mangroves accrete soil fast enough to maintain elevation, reducing flood risks for millions. Healthy mangrove ecosystems can reduce wave heights by up to 66% over short distances, offering a cost-effective alternative to artificial barriers. They also store carbon, helping mitigate climate change itself.