SYDNEY, Australia — When Terry Hughes surveyed the Great Barrier Reef four years ago from a small plane, mapping the bleaching and death of corals from water warmed by climate change, he hoped such a rare and heartbreaking scene would not be repeated anytime soon.
But rising temperatures sent him back to the air in 2017, when the reef bleached again. Then he returned last month, leading to another devastating conclusion: The reef was being ravaged by bleaching yet again, this time across an even wider area.
https://www.nytimes.com/2020/04/06/world/australia/great-barrier-reefs-bleaching-dying.html
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