Australia's Great Barrier Reef has faced a second mass coral bleaching event in just 12 months, which scientists fear could cause kill part of the world's largest living structure. Researchers have found two consecutive mass coral bleaching events in the reef, part of which can be attributable to climate change. (ARC Centre for Excellence)"Clearly the reef is struggling with multiple impacts," said Terry Hughes, director of the ARC centre, said in a release. A map illustrates the exent of mass bleaching of 2016 and 2017. (ARC Centre for Excellence)The concern, the researchers say, is that the coral that was damaged during the mass bleaching in 2016 has no chance of recovery.

Source: CBC News April 10, 2017 17:26 UTC