Coral reefs are bleaching because of ocean acidification due to climate change. This is the longest bleaching event recorded in history and is also affecting other marine organisms
A school of Manini fish pass over a coral reef at Hanauma Bay in Honolulu, Hawaii. Water pollution, ocean acidity caused by global warming are killing coral reefs.
A University of Miami team places a piece of Orbicella Faveolata coral into a holding tank after collecting the sample from a living coral reef off the South Florida coast.
Peter Gash snorkels with Oliver Lanyon and Lewis Marshall during an inspection of the Coral Gardens reef located at Lady Elliot Island, north-east of Bundaberg in Queensland.