Australia Great Barrier Reef bleaching worse than thought, say scientists

Great Barrier Reef (File|AFP)

Great Barrier Reef (File|AFP)
SYDNEY: Coral bleaching on Australia's Great Barrier Reef is worse than first thought and the impact will accelerate unless global greenhouse gas emissions are cut, scientists said on Monday.
The 2,300-kilometre (1,400-mile) World Heritage-listed reef suffered its most severe bleaching on record last year due to warming sea temperatures during March and April.
Initial aerial and in-water surveys showed 22 percent of shallow water corals were destroyed in 2016, but it has now been bumped up to 29 percent and with the reef currently experiencing an unprecedented second straight year of bleaching, the outlook is grim.
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