The Age | Coral bleaching threatens Sydney and returns to Great Barrier Reef amid unusually warm waters The Sydney Morning Herald Unusually warm sea temperatures and the prospect of more to come have reef scientists worried that the Great Barrier Reef may experience another major coral bleaching event. Sydney's corals may also be at risk. The reef suffered its worst recorded ... Day on Great Barrier Reef leads to lifetime of love for British tourists All eyes on Great Barrier Reef run off |