Ocean Life - Coral bleaching: how rising temperatures whiten reefs

Coral bleaching happens when stressed corals expel their symbiotic algae and photosynthetic pigments, turning them entirely white. This phenomenon is primarily driven by rising sea temperatures linked to climate change, leaving corals vulnerable to disease and starvation. Between twenty-fourteen and twenty-sixteen, a global event wiped out unprecedented quantities of coral, including up to half the coral on parts of the Great Barrier Reef. Between early twenty-twenty-three and late twenty-twenty-five, severe heat stress affected over eighty-four percent of global reef areas.

Source: Wikipedia