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.

Man can now fly in the air like a bird, swim under the ocean like a fish, he can burrow into the ground like a mole. Now if only he could walk the earth like a man, this would be paradise.

Obama's record on climate issues is not all bad.

Since most corporate competitors have the same problems with sustainability and social reputation, it's worth trying to solve them together.

Every day is Earth Day, and I vote we start investing in a secure climate future right now.