Prior to the 2016 and 2017 mass bleaching events, AIMS found that crown-of-thorns starfish outbreaks (COTS) was a leading cause of devasting coral cover loss. But why do these COTS outbreaks happen? Scientists believe that excessive use of fertilisers on the land contributes to the problem. Right now, we have a rare chance to stop fertiliser pollution and clean up our Reef. Add your name now! >> bit.ly/COTSOutbreaks | Fight For Our Reef