Degradation and loss of coral reefs can affect about 4.5 million people in Southeast Asia and the Indian Ocean . In the coral reef fisheries sector, there are about 3.35 million fishers in Southeast Asia and 1.5 million fishers in the Indian Ocean . The economic loss under different climate-change scenarios and fishing efforts were estimated to range from 27.78 to 31.72 million USD annually in Nha rang Bay, Vietnam. A survey conducted in Taiwan, Province of China, showed that the average annual amount that people were personally willing to pay was 35.75 USD and the total amount was 0.43 billion USD. These high values indicate the need to preserve these coral reef ecosystems . In Bangladesh, the coral reef of St. Martin's Island contributes 33.6 million USD yr-1 to the local economy, but climate change, along with other anthropogenic activities, has been identified as a threat these habitats .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report