Great Barrier Reef (IMAGE) ARC Centre of Excellence for Coral Reef Studies Caption Ninety-one percent of reefs on the World Heritage-listed Great Barrier Reef bleached from thermal stress in 2016. Credit Gergely Torda/ ARC CoE for Coral Reef Studies. Usage Restrictions For use with this story only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.