if carbon dioxide continues to increase at current rates. Coral reefs, harbouring a quarter of ocean species, are threatened.
– James Hansen
Earth to Jim … corals evolved with CO2 levels 10-20X higher than at present, and temperatures 10C higher than at present. They have survived all the catastrophes nature has thrown at them for the last few hundred million years. If conditions become unfavorable in one location, they can and will migrate.
Clearly, if we burn all fossil fuels, we will destroy the planet we know. Carbon dioxide would increase to 500 ppm or more. We would set the planet on a course to the ice-free state, with sea level 75 metres higher.
75 metres? Someone sounds certifiable to me.