Surveys taken throughout 2016 show escalating impact from north to south, with 70% of shallow water corals dead north of Port Douglas

Coral bleaching on the Great Barrier Reef last year was even worse than expected, while the full impact of the most recent event is yet to be determined.

Queensland government officials say aerial and in-water surveys taken throughout 2016 had confirmed an escalating impact from north to south.

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Source: Guardian Climate Change