I know most of you are thinking, “100 years, yeah right!” To tell you the truth, its all about the research. You cant blame the research cause it depends on a lot of factors.
Anyways, the rising acidic levels in the oceans and the warming of the ocean temperature, is causing most of the coral reefs to disappear. Now coral reefs houses and feeds millions of aquatic organisms and fishes. It will kill off millions of species causing a serious chain reaction breaking the eco-system.
Oceans are the greatest carbon sink but due to this it is causing them to become acidic.