It is not the peak temperature that is the problem, but the speed for which the temperature is rising. Adaptation need time, especially for symbiotic relationsh

It is not the peak temperature that is the problem, but the speed for which the temperature is rising. Adaptation need time, especially for symbiotic relationships. The reason that the coral is dying is because the sharp increase in temperature is mimicking that of an disease, and the incorrect reaction causes the coral to self-die. It actually a bit similar to how a virus in an pandemic can become deadly to humans because it cause the immune system of the host to go into hyper drive. The virus itself can be rather minor, and the immune system reaction under normal circumstances would be pretty harmless, but an incorrect reaction results in death. Inflammation can be a great tool to combat a virus, but too much inflammation in the lungs can cause acute respiratory distress resulting in death.