The protection of the coral and coastal vegetation benefits both the local communities and the environment in general. another local conservation program involves preserving mangrove trees mangroves help to protect coastlines they sustain sea life and their growth can help to counteract the effects of rising sea levels by actually elevating the coastline but like corals coastal mangroves are among the most endangered ecosystems on earth that's according to the united nations where the last hundred years we've lost at least one third of the world's mangrove forests they're actually being lost a...