The world’s oceans are suffering greatly due to global climate change, coral in particular. About 90% of the heat that comes from global warming goes into the oceans, causing a rise in ocean temperatures. This can be detrimental to the corals that reside here. Coral bleaching happens when corals become stressed by changes in their environment that causes them to eject the photosynthetic algae that live in their tissues, causing them to lose all color and turn white. When ocean waters raise just one degree Celsius above the highest expected summer temperature, coral bleaching can begin.