Coral reefs are dying around the world. Damaging activities include coral mining, pollution (organic and non-organic), overfishing, blast fishing, the digging of canals and access into islands and bays. ... Climate change, such as warming temperatures, causes coral bleaching, which if severe kills the coral.

What is the main reason coral reefs are dying?

Without corals, reefs will degrade and vanish within years. At present, coral reefs are facing multiple stresses such as pollution, overfishing, and, overall, the ongoing climate change―consequently raising sea water temperatures and causing coral bleaching worldwide.

Why are coral reefs important and why are they dying?

Since the beginning of the 20th century, sea surface temperatures have increased, and they continue to rise. Not able to cope with the unusually warm temperatures, corals reefs have experienced mass bleaching events at increasingly short intervals. ... When corals are without the algae for too long, they die of starvation.