This comes as the coral of Australia’s Great Barrier Reef has experienced its worst die-off on record, as a result of warmer ocean water due to climate change. Scientists say bleaching has killed two-thirds of the coral on the 430-mile northern stretch in only nine months. This is Terry Hughes of the Australian Research Council.

Terry Hughes: “Well, we’ve seen now three bleaching events on the Great Barrier Reef. The first one was in 1998, the second in 2002, and the third one this most recent summer in 2016. This one is by far the most extreme. And we’ve seen three of these events now with just 1 degree of global warming. So, 2 degrees of global warming, which is the international target, is going to be a very challenging place for the Great Barrier Reef.”