The Guardian | Julie Bishop steps up lobbying to stop Great Barrier Reef being listed 'in danger' The Guardian Rising sea temperatures has led to widespread coral bleaching on the Great Barrier Reef. Photograph: University of Queensland/Ove Hoegh-Guldberg/AAP Image. Oliver Milman. Monday 8 December 2014 21.00 EST. Share on Facebook · Share on Twitter ... Tropical Water Quality Hub to allow Great Barrier Reef studies Bishop accused of scare tactics on Reef |