The whole of the 20th century has always put the car at the center. So by putting the pedestrian first, you create these livable places, I think, with more attraction and interest and character.

Climate change should be seen as the greatest challenge to face man and treated as a much bigger priority in the United Kingdom.

If you think about the impact of climate change, [it should be how] a doctor would deal with the problem. A scientific hypothesis is tested to absolute destruction, but medicine can't wait. If a doctor sees a child with a fever, he can't wait for [endless] tests. He has to act on what is there. The risk of delay is so enormous that we can't wait until we are absolutely sure the patient is dying.

We might be more inclined to think about the longer term if we were more aware of what is happening around us. Perhaps daily weather forecasts could include a few basic facts about the Earth's vital signs or details of where climate change is increasing the likelihood of damaging weather?

The sustainability revolution will, hopefully, be the third major social and economic turning point in human history, following the Neolithic Revolution - moving from hunter-gathering to farming - and the Industrial Revolution

Any difficulties which the world faces today will be as nothing compared to the full effects which global warming will have on the world-wide economy.