Ove Hoegh-Guldberg discusses coral reefs, global warming, jobs and phasing out coal!

Mass coral bleaching on the Australian Great Barrier Reef began as atmospheric carbon dioxide concentrations began to rise noticeably. When water temperatures rise, coral bleaching can occur causing many reef species, and tourists, to depart!

Atmospheric carbon dioxide will need to be reduced to around 320 parts per million to keep coral reefs healthy and to save the Great Barrier Reef's tourist industry which employs 62,000 people and earns $AUS6 billion per annum.