Climatic change emerged out as one of the most significant global threat for the ecosystems of coral reef. There are several Scientific pieces of evidence which indicate the warming of Earth’s atmosphere as well as ocean warming. All such changes are majorly happening because of the greenhouse gases which are derived from the activities of the citizens of this world, the humans.
Scientists already predicted a sharp increase in sea levels globally because of the melting down of two massive sized ice sheets located in Greenland and Antarctica. Scientists indicated that many of the nations across the world would start experiencing the adverse effects of the sea levels which are in rising mode. If immediate attention is not given, then it will make millions of citizens of this earth get displaced. There is one particular nation, and that is the Maldives, which is already in search of the second home, and it's because of the rising sea levels.
Based on a report of WWF, if no solution is found for global warming, then the coral populations will start collapsing starting from 2100 because of increased temperatures as well as ocean acidification. Ocean acidification enhances the coral bleaching and thus, in turn, reduces the productivity for coral as well as dinoflagellates. The rate at which corals make calcium carbonate production is strongly dependent on carbonate ions (CO32–) concentration. If the pH level of oceans keeps decreasing, the carbonate concentrations will reduce because of the shift in equilibrium for the formation of HCO3 ions.
Coral bleaching will increase the sea temperature, and that will turn out to be a danger for the ocean ecosystems, and several other species of oceans which need to survive depending on the coral reefs.
It’s is very clear now that several coral reefs, which also includes the famous Great Barrier Reef of Australia, are now in the process of dying. Because of coral bleaching at the excessive level, the corals are in starvation. Now we can see shrinkage as well as the death of the corals which used to support several thousands of species which used to exist on coral reefs.
Very recent research said that the oceans started experiencing severe and more prolonged “marine heat waves” which may push even higher the ocean animals as well as their ecosystems in enhancing their limits.