Unfortunately, the real focus in this country has not been on the rest of the world. It's been on our own issues and our own problems. Fair enough. But it means that our simple hopes that everything will just work out abroad aren't really coming to pass.

Everybody needs to understand that policies are going to change to make it unprofitable if you wreck the planet, those companies that continue exploring and developing fossil fuel resources for which there is no safe use are going to pay a very heavy cost for that.

I believe myself that there's a great deal more interest and engagement among Americans than our politicians recognize.

It's the American leadership that has not played the role it should be playing and that leaders in other countries have been playing.

It's quite possible to arrive in the year 2030 where people are no longer dying of poverty. We could actually help lead a global end-not a reduction, but an end-to absolute poverty...I have always found that a committed, powerful group of leaders, can make a huge difference.

The key to ending extreme poverty is to enable the poorest of the poor to get their foot on the ladder of development. The ladder of development hovers overhead, and the poorest of the poor are stuck beneath it. They lack the minimum amount of capital necessary to get a foothold, and therefore need a boost up to the first rung.

In my view, there is an urgent need to communicate with the public and help to explain where there is consensus, and where are there doubts about the issues of sustainable development.