Celsius destroys coral reefs. Another systematic challenge involves increased rainfall regarding the water cycle. Coral placed in fresh water would swell up and die. Exposure to high salinity also causes the organism to die, as it would shrivel up. Osmosis is responsible for the creature's death in both cases.
Osmosis is the movement of water through a membrane.
Molecules are carried with it. Change in weather patterns will change the levels of salinity in many regions, as the amounts of fresh water runoff are partially responsible for salinity. Most marine invertebrates have adapted salinity levels in their body fluids and blood that is about equal to the salinity of seawater. The final predicted adaptation that coral will have to generate regarding temperature involves rising sea levels. Sea level rises due to the green house effect and may drown many corals.