Great Barrier Reef

CANBERRA (Reuters) - Australia's Great Barrier Reef, the world's largest living organism, is under grave threat from climate warming and coastal development, and its prospects of survival are "poor," a major new report found on Wednesday.

"Even with the recent management initiatives to improve resilience, the overall outlook for the Great Barrier Reef is poor and catastrophic damage to the ecosystem may not be averted," a government reef management body said in the report.

The five-yearly reef outlook report, aimed at benchmarking the health of the reef, found climate change, declining water quality from coastal runoff, development and illegal fishing were the biggest dangers to the reef.

The study echoed findings by scientists belonging to the U.N. Intergovernmental Panel on Climate Change that the Great Barrier Reef could be "functionally extinct" within decades, with deadly coral bleaching likely to be an annual occurrence by 2030.

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