Coral bleaching event now biggest in history – and about to get worse: 'Coral in every major reef region has already experienced severe bleaching. About 93% of the reefs on Australia’s Great Barrier Reef have been affected, and almost a quarter of the reef on the 2,300km stretch is now dead.'

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Submitted June 21, 2016 at 07:41AM by maxwellhill http://ift.tt/28JzeFr