Future of Australia’s Great Barrier Reef hangs in the balance

As experts gather at a UN Ocean Conference in Lisbon, UN Secretary-General Antonio Guterres has warned that the world is facing an “ocean emergency”. In Australia, the Great Barrier Reef recently suffered another mass bleaching event, just months after a UNESCO committee recommended the World Heritage Site be listed as “in danger”. The country’s new left-leaning Labor government has promised to tackle global warming, but the reef’s future hangs in the balance as long as Australia remains one of the world’s largest exporters of fossil fuels. Our correspondents report.