Coral bleaching 101 - coral bleaching explained | Great Barrier Reef Marine Park Authority 

This 2019/2020 summer the Great Barrier Reef experienced its third mass coral bleaching event in five years. But what exactly is coral bleaching?
The Marine Park Authority’s Chief Scientist Dr David Wachenfeld gives us a coral bleaching 101 lesson, answering the top questions: What is coral? What is coral bleaching? What causes coral bleaching? Can bleached coral recover?
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