The main effect of rising seas on coastal habitats is increased flooding and erosion, which can lead to the loss of terrestrial ecosystems. Coastal wetlands, beaches, and estuaries are particularly vulnerable, as they serve as critical habitats for numerous species. The increase in water levels can disrupt saltwater and freshwater balances, impacting local biodiversity and fish populations. Moreover, rising seas can threaten human developments and infrastructure near coastlines, prompting the need for adaptive management strategies to mitigate these impacts and protect both natural and human systems.