"The geologists just last year came up with an astounding finding. These two rates, the current rate of CO2 and temperature change is almost unprecedented in the entire history of our planet, 4.5 billion years. The only time geologists can find an instance when CO2 and temperature are changing as rapidly was 66 million years ago when the meteorite struck and wiped out the dinosaurs. And by the way, that temperature change was in the opposite direction, it was cooling. So as far as we can see, this is as fast as the temperature has ever risen in the history of our planet. This is an astounding finding. It has enormous implications for the biosphere and of course for human wellbeing as well."