Nevertheless, the concept of sustainable development is now known - even amongst those who haven't accepted it - and it's recognized, debated and followed by an increasing number of businesses.

Well they do have a use, but we should never believe that any international conference is going to suddenly solve problems like the condition of the global environment.

Rumors of my wealth are greatly exaggerated. I have never been interested in money.

Not to say that corporations are perfect today, but even grand corporations like Dupont have made immense progress in translating some of their past environmentally damaging practices into new profit opportunities.

I was with Ted Turner when he came to see Kofi Annan - the Secretary-General of the UN - to announce his decision to put $1 billion to the service of UN projects and programs.

We're either going to save the world or no one will be saved.

The combination of population growth and the growth in consumption is a danger that we are not prepared for and something we will need global co-operation on.