Australia, great coral reef at risk of bleaching - Breaking news. The management authority of the Great Barrier Reef of Australia has launched an aerial survey of the ecosystem, which extends for 2,300km.
Helicopters observed "extensive and fairly uniform" bleaching across all regions of the reef, spanning a distance of more than 1,100 km. environmentalists fear a seventh mass bleaching is unfolding, after those that occurred between 1998 and 2022.. Whitening occurs when water remains unusually warm for several weeks.