The main threats to coral reefs are climate change, overfishing and pollution of the seas. This, added to other problems such as tropical storms or invasive species, causes the situation to be increasingly critical.
He increase in temperature of the seas causes corals to bleach due to stress. Furthermore, the increase in carbon dioxide in the atmosphere changes the chemical composition of the oceans and damages coral reefs.
On the other hand, unsustainable fishing in reef areas can produce the loss of marine species of vital importance for ecosystems. These losses also affect the local economies that depend on them.