Obviously any group that has to have funding also needs to get attention to their issues.

Think on a 50-year scale, which is a much more natural time-scale for global warming. The US is right now spending about 200 million dollars annually on research into renewable energy.

Surely the biggest problem we have in the world is that we all die. But we don't have a technology to solve that, right? So the point is not to prioritize problems; the point is to prioritize solutions to problems.

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 an old member of Greenpeace. I worried intensely, as I think most of my friends did, that the world was coming apart.

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.

For the longest time in Denmark I didn't want to say what I was politically. I thought it was irrelevant.