“It was catastrophic, gut wrenching and incredibly disturbing. That was one of the most comprehensive hard coral cover sites on the Reef and all of the coral in the shallows was fully bleached. That’s when we knew that we’d lost that site.”
Our guide’s words cut through the sea breeze blustering over the stern of our dive boat. Our tour group of about thirty, were sitting in our wetsuits, warming ourselves after another dive on Opal Reef off Port Douglas, listening to Paul describe his reaction to that first coral bleaching event and trying to make sense of what we had just experienced: “In 2016, the world lost a lot of its living coral and the Great Barrier Reef was no exception. What’s causing it is global warming induced rises in water temperature.” That day we had seen stunning congregations of staghorn and branch coral, delicate sponges, vivid blue giant clams, large boulder corals metres across, and myriad fish coloured in reds and blues and greens darting in and out of our way. But we had also seen large swathes of dead coral on the top of the reef, their skeletal remains just discernible behind a shroud of algae.