The sea is a very delicate ecosystem and its biggest factor against it is the rising temperatures around the world which is due to global warming. Higher temperatures make toxic light for the corals which starve them and eventually causes them to die or bleach. Also, if carbon emissions stay on its current path 74 percent of coral reefs with become bleached by 2045. The findings emphasize that without significant reductions in emissions most coral reefs are at risk. A reduction of carbon emissions would delay annual bleaching events more than two decades in nearly a quarter (23 percent) of the world’s reef areas. The researchers involved in the study all concur that projections that combine the threats posed to reefs by increases in sea temperature and ocean acidification will further resolve where temporary refugia may exist.