The only thing that will really change global warming in the long run is if we radically increase the speed with which we get alternative technologies to deal with climate change.

We worry about the seemingly ever-increasing number of natural catastrophes. Yet this is mainly a consequence of CNN - we see many more, but the number is roughly constant, and we manage to deal much better with them over time. Globally, the death rate from catastrophes has dropped about fifty-fold over the past century.

There is no question that global warming will have a significant impact on already existing problems such as malaria, malnutrition, and water shortages. But this doesn't mean the best way to solve them is to cut carbon emissions.

The second thing is, if you want to do something about global warming, you have to think much more long-term. There is something wrong with saying we should start using renewables now, while they are still incredibly expensive.

Global warming is real - it is man-made and it is an important problem. But it is not the end of the world.

I really try to say things as they basically are and it so happens that it is a good message that things are getting better, but there are still problems.

I'm a vegetarian, but I don't expect other people not to eat meat.