Half of the world’s coral reefs suffered major bleaching during the 2014–2017 global heat wave, estimates suggest. “Levels of heat stress were so extreme during this event that Coral Reef Watch had to create new, higher bleaching alert levels that were not needed during prior events.”

Half of the world’s coral reefs suffered major bleaching during the 2014–2017 global heat wave, estimates suggest. “Levels of heat stress were so extreme during this event that Coral Reef Watch had to create new, higher bleaching alert levels that were not needed during prior events.”

Source: The_Weekend_Baker