Thursday: Day in photos - Australia

This undated photo of a bleached section of Australia's Great Barrier Reef, which scientists have warned could be destroyed by global warming within decades, has managed to regenerate itself. But Laurence McCook, head of research for the Great Barrier Reef Marine Park Authority that preserves the World Heritage-listed site, said the giant organism remained at serious threat of climate change and labeled the partial regeneration a "lucky escape." The badly damaged stretch of coral at Keppel Island, on the reef's southern end, became strangled by seaweed after it began bleaching in 2006 due to elevated sea temperatures and acidity, the results of global warming.
Great Barrier Reef Marine Park Authority
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