Australia’s Great Barrier Reef is one of the most famous World Heritage Sites on the planet.Yet you won’t read about the Great Barrier Reef in the U.N. climate report, after the Australian government demanded all mentions of the reef be scrubbed, for fear that tourism would suffer.Record-breaking hot ocean temperatures are frying the reef, threatening a massive and unique ecosystem and the country’s main tourism draw. Nearly all of the reef has been seriously impacted by coral bleaching caused by high ocean temperatures and a third of the northern section is completely dead.