
At Heron Island, 70km off the Queensland coast, corals that sit in 20 metres of water are slowly cooking.
It's as hot down there as it is on the surface and there's nothing normal about that.

At Heron Island, 70km off the Queensland coast, corals that sit in 20 metres of water are slowly cooking.
It's as hot down there as it is on the surface and there's nothing normal about that.