Mass coral bleaching has destroyed at least 35% of the northern and central Great Barrier Reef, Australian scientists said on Monday, a major blow to the World Heritage Site.
Australian scientists managing the Great Barrier Reef have lifted their emergency response to the highest level following the publication of video footage of damage caused by coral bleaching.
An 11-year-old boy swimming in the waters of Australia's Great Barrier Reef was mauled by a shark, the second attack in the area in four days.
