Footage shows coral bleaching at Western Australia's Ningaloo Reef – video

Divers have documented evidence of what conservationists say is widespread coral bleaching at the Ningaloo Reef off Western Australia’s north-west coast. Waters off WA have been affected by a prolonged marine heatwave since September, with ocean temperatures 1.5C higher than average over a five-month period

• Large areas of WA’s Ningaloo corals could die in ‘weeks ahead’ after widespread bleaching documented