In the northern region of the Great Barrier Reef, about 67 percent of the corals have died over the last 8-9 months, making it the largest loss of corals ever recorded for the Great Barrier Reef, scientists say. On some reefs in the northern part of the Great Barrier, nearly all corals have died. But the central and southern part of the Great Barrier seem to have fared better, suffering “minor” damage compared to the northern region. Scientists expect that it will take at least 10-15 years for corals in the northern region to regrow, but a fourth bleaching event could strike the region before the reefs have had the chance to recover completely.

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