Terry Hughes from James Cook University in Queensland leads a taskforce measuring the condition of the Great Barrier Reef amid a global coral bleaching event that is ‘off the scale’. ‘The kind of bleaching we’re seeing now is an entirely modern phenomenon,’ he says. ‘We’re now in a very precarious position, where every El Niño that comes along, every five or six years, can potentially bleach the entire Great Barrier Reef’

• Great Barrier Reef: a catastrophe laid bare – special report

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Source: Guardian Environment