Coral cover on two-thirds of Australia's Great Barrier Reef has reached its highest level since records began 36 years ago, according to marine scientists monitoring the ecosystem
"The increasing frequency of warming ocean temperatures and the extent of mass bleaching events highlights the critical threat climate change poses to all reefs, particularly while crown-of-thorns starfish outbreaks and tropical cyclones are also occurring," he said.AIMS chief executive Dr Paul Hardisty said the increasing frequency of such events is"uncharted territory" for the reef.
The report comes as UNESCO considers whether to list the Great Barrier Reef as"in danger", following a visit by the United Nations body in March. In a key measure of reef health, AIMS defines hard coral cover of more than 30% as high value, based on its long-termOn the northern region, average hard coral cover grew to 36% in 2022, while on the central region hard coral cover increased to 33% - the highest levels recorded for both regions since the institute began monitoring the reef in 1985.
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