Climate is a global issue. Coal is still the energy that is being used more than anything else to make electricity. The United States is using less as we're turning more to gas. But, around the world, that's what they're using.

We don't gaze into a crystal ball. I do not believe that we predict things. I think political science is bad at prediction. I think what we really do well is in a number of instances where politics matters, we can do a better job of tell you what is happening now, than other people. So, we can look at Syria today. We can look at the Eurozone today. And we can look at areas where politics is a driver and we can give you a pretty good sense in those areas of here is how to understand today.

There is too large a divergence at the moment in the interests and values of the world's most powerful states.

I believe that if you go and ask a chief executive of a Goldman Sachs or a BP, and they answer you honestly they want monopolies, they want government subsidies, they want preferences - they're not interested in free markets.

I think political science is bad at prediction. We don't gaze into a crystal ball. I do not believe that we predict things.

Whether it is gun control lobby, health care lobby, or abortion, pro-choice lobby, whatever it is, people are always trying to say that it is about restricting rights and they are never really prepared to talk about what the honest tradeoffs are. One of the things we need to do a better job of is actually painting those tradeoffs.

I would rather people not smoke. I certainly appreciate the fact that smoking is not legal in restaurants and bars. That used to stop me from going out at night because you'd go someplace and your clothes would reek and you wouldn't enjoy the experience and that affects your rights. It's always a question. Whenever you are talking about these issues, it's not a question of restricting rights. It's a question of restricting whose rights, and providing for whose rights and that's a tricky balance.