> A changing climate doesn't mean an unlivable earth. For virtually the entire history of life on this planet for the majority of life on the planet, this stat

> A changing climate doesn't mean an unlivable earth. For virtually the entire history of life on this planet for the majority of life on the planet, this statement is false. Peter Ward's Under a Green Sky is a great read on this subject from a scientific point of view and Peter Brannen's The Ends of the World covers it more broadly with a more journalistic style. The geological evidence we have strongly suggests that rapid rise in CO2 and sudden climate change have been responsible for many of the great extinction events in the fossil record. While the magnitude of our current CO2 spike is not as severe as the most extreme cases, it is happening at a rate that is unprecedented in the history of life on this planet. Now to be clear, there are many, many unknowns about exactly how things will play out, so this isn't a "we're definitely going extinct in the near future!" message. But species extinction is absolutely in the cards (it is worth pointing out we're already in the 6th largest extinction event).