Mangroves are salt-tolerant trees found in the coastal waters of the tropics and subtropics around the world. Mangrove forests play vital roles for both nature and society. They help protect coastal communities as they provide a natural barrier from tsunamis and storms. In the other direction, they filter pollution and soil runoff. These forests also provide a marine nursery ground as the juveniles of coastal fish can easily hide between the trees. And they have an important role as a carbon sink, thus mitigating climate change.
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Source: Phys.org