We need what I have often called an ecological approach to the management of these resources and we do not have that now. We have the inertia of past habits, unsustainable habits.

I've developed a huge regard for Toyota for its environmental awareness, for its immense commitment to research and development in this field, and for its leadership in developing hybrids which others are now following.

Licences to have babies incidentally is something that I got in trouble for some years ago for suggesting even in Canada that this might be necessary at some point, at least some restriction on the right to have a child.

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.

My main argument is that environmental destruction comes when people externalise their costs and pass them on to future generations. That is obviously something that large enterprises do and they become large by doing it.

Though dams and artificial lakes can have significant negative environmental impacts, when carefully considered, mitigated, and managed, the benefits of hydropower often outweigh these costs.

Shrimp farms are a scourge on the earth, frankly, from an environmental point of view. They pour huge amounts of pollutants into the ocean. They also pollute their next-door neighbors.

No occupation is so delightful to me as the culture of the earth, and no culture comparable to that of the garden.