In 2025, coral cover in the Great Barrier Reef’s northern region fell to 30% after its largest annual decline on record; a year later, surveys of 192 reefs found it had risen to 35.1% despite another bleaching event
A variety of corals form an outcrop on Flynn Reef, part of the Great Barrier Reef near Cairns, Queensland, Australia. Credits – WIkimedia Commons The last two years have been a tale of two extremes for the Great Barrier Reef.” In 2025, the northern region of the reef experienced its biggest annual decline in coral…
