It is the potential for economic growth that provides the basis for the development of countries, for bringing to people essential goods and services, such as water to drink and facilities for healthcare.

I have a great deal of difficulty with those who live in a hugely prosperous country telling people in the developing world that they should be deprived of a critical source of energy.

We obviously want to produce things that people want. We are going to continue to do that in an environmentally responsible way, while still being aware of the physical, scientific, and practical issues that we have to deal with.

In every aspect of life, including the economic dimension, we are always challenged to do the right thing. In many cases in the market system, which allows a great deal of latitude for human choice, people can get carried away to excess.