Australia's Barrier Reef suffers fifth mass bleaching in eight years
Australia's Great Barrier Reef is experiencing its fifth mass bleaching in just eight years, according to the authority which monitors the health of the world's largest coral reef. The Great Barrier Reef Marine Park Authority (GBRMPA) announced on Friday that rising ocean temperatures were causing a marine heatwave that was causing massive damage to a 1,100-kilometre-long stretch of reef. Aerial photographs show that the affected area stretches from the Keppel Islands, about 500 kilometres north of Brisbane, to Lizard Island, north of Cairns. However, further investigations are necessary to ac...