Don't accept that you can't make a difference. Because if you can't make a difference, you won't make a difference, and if you put a multiplier on that we will continue on an unsustainable pathway.

We owe at least this much to future generations, from whom we have borrowed a fragile planet called Earth.

What pleases me most is that sustainable development is on almost everybody's agenda now.

Occupy World Street is a masterpiece which deserves to get wide circulation and commitment by world leaders.

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

In addition to this, they already have a fuel cell car on the road in Japan. It is subsidized from within the corporation because they are still at a high cost.

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.