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.

I think the best way to control a population is to urbanize and to educate women. We have seen historically in many, many countries that once women are educated and have opportunities, and that happens when they live in cities and once they improve their economies, they no longer want to have eight kids.

An emerging market is a country where politics matters at least as much as economics to the market.

In environments where corporations become too interventionist and capture regulation themselves, the government must be able to battle back so that the people have a chance.

I was fifteen in college at Tulane. I lied about my age in college so that I could be normal socially. So that girls would go out with me and stuff like that. I just said I was normal age.

I absolutely am an environmentalist. I am probably more of an environmentalist than most people who live in the world, but I think that comes from my position in the world and that doesn't make me a better person.

In the nearer term, the likeliest source of risk is a conflict between China and the U.S. These are now the two largest economies in the world, and the combination of their economic interdependence, the sharp differences in their political and economic values, and the growing divergence in their interests makes this relationship potentially dangerous for everyone who might be affected by it - which means pretty much everyone.