How mass bleaching has pushed the Great Barrier Reef to the brink

One Tree Island isn’t an easy place to get to. Part of the Great Barrier Reef, there is often just one short window each day when the tides are high enough for a small boat to cross the rampart of treacherous coral that surrounds the island. Only then can you reach the remote research station it houses.

I was travelling with Selina Ward from the University of Queensland in Brisbane. Like me, she was making the arduous trip to the…