Oceans are already experiencing large-scale changes at a warming of 1°C, with critical thresholds expected to be reached at 1.5°C and above. We have to do something now.
Coral reefs are projected to decline by a further 70-90% at 1.5°C. At a warming of 2°C virtually all coral reefs will be lost. It’s not only a tragedy for wildlife: around half a billion people rely on fish from coral reefs as their main source of protein.