You mustn't take what I say as gospel because no one can second-guess the future.

All the modelling we do shows that the climate is poised on the jump up to a new hot state. It is accelerating so fast that you could say that we are already in it.

Only nuclear power can now halt global warming.

NASA will send up a big sun shade that will be in orbit between the earth and sun and deflect 2 or 3 percent of the sunshine back into space. It would be cheaper than the international space station.

If it hadn't been for the Cold War, neither Russia nor America would have been sending people into space.

I'm a scientist, not a theologian. I don't know if there is a God or not. Religion requires certainty.

I know that to personalize the Earth System as Gaia, as I have often done and continue to do in this book, irritates the scientifically correct, but I am unrepentant because metaphors are more than ever needed for a widespread comprehension of the true nature of the Earth and an understanding of the lethal dangers that lie ahead.