This is the best summary I could come up with:

Concern that the Great Barrier Reef may be suffering the most severe mass coral bleaching event on record has escalated after a conservation group released footage showing damage up to 18 metres below the surface.

Dr Selina Ward, a marine biologist and former academic director of the University of Queensland’s Heron Island Research Station, said it was the worst bleaching she had seen in 30 years working on the reef, and that some coral was starting to die.

The Australian Marine Conservation Society on Thursday released video and photos that it said showed bleaching on the southern part of the reef extended to greater depths than had been previously reported this year.

He said the scale of the damage was comparable to 2016, the worst previous year experienced, but there were now fewer individual reefs untouched by bleaching between southern Queensland and the Torres Strait.

Schindler also urged the authority, which she described as the reef’s custodian, to play a greater role in advocating for stronger action on emissions.

Interviewed on ABC’s Radio National on Wednesday, the environment minister, Tanya Plibersek, said the government was “very concerned about the bleaching that we see at the moment, sadly, not just on the Great Barrier Reef, but right around the world”.

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