Papua New Guinea (IMAGE) ARC Centre of Excellence for Coral Reef Studies Caption A young boy in coastal Papua New Guinea. Climate change continues to threaten coral reefs and the futures of 400 million people who are dependent upon them. Credit Joshua Cinner/ 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.