Dangerous climate change... It's important not to be alarmist but it is very important to be alarmed

Thirty years ago, if you said the country was living beyond its means, people would have thought about economics. Now, if you talk about the country, or the planet living beyond its means, you think about the environment. We are taking out more than we are giving back. We are consuming energy, water, and other natural resources in a way that is leading to huge and often irreversible damage to the planet. So too are most other developed nations. And so too will China and India if they follow the same path of economic development as us

My advice is very simple: if you can win a small battle, it gives you confidence in the political process to take on bigger battles, and so it is very much a bottom-up grass-roots way of doing politics.

In the future, every industry should be an environmental industry. In a world where energy and carbon emissions are constrained, every business must take resource productivity seriously

I abhor anything that constitutes torture. Water-boarding, its perfectly clear to me it is torture. I never supported extraordinary rendition to torture, always said that Guantanamo should be closed. There is no clash of ideals and pragmatism there.

I'm a great believer in the Arsene Wenger school of management - which is, you don't worry about the opposition, you just get your own act together.

Essentially, by 2050 we need all activities outside agriculture to be near zero carbon emitting if we are to stop carbon dioxide levels in the atmosphere growing