Coral reefs are a gathering place for many marine life. If coral reefs disappear, many fish will lose their habitat, and these fish will face the risk of disappearing, which will cause imbalance of other marine life. The whole marine ecosystem will be in danger of chaos. Ecosystem is a very tight system, and the lack of any link will have a terrible impact.

Coral reef is actually a very important marine ecosystem, which is related to about14 of marine life. As long as there are healthy coral reefs, they must be the most prosperous areas of underwater cities. The life source of marine life is also the source of food and income for 5-65.438 billion people. Moreover, many drug extraction and scientific research need and rely on coral reefs. Marine ecosystem is an important part of the earth's ecosystem.

Over-exploitation and pollution of marine resources, overfishing of marine fish and predatory development of coral reefs in recent decades have led to an unprecedented survival crisis of coral reefs. Scientists boldly predict that if this situation continues, coral reefs will be completely extinct in the next 50 years. These changes caused by the rising sea temperature caused by global warming are only one factor that aggravates the decline of coral reefs. More coral reefs are still related to human hunting.

Global warming and population growth will increase the number of forest fires. Future fires may harm coral reefs again. In fact, this threat will not only harm coral reefs, but also any coastal ecosystem.