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.

We know from history that the way wars are concluded is absolutely the key to whether or not there is any peace to be kept.

Turning every business into an environmental industry will involve applying new principles...first, we need to make more with less...second, we need to design out waste...third, we must begin to decarbonise our energy supply

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.

We are living as if we had three planets' worth of resources to live with rather than just one. We need to cut by about two-thirds our ecological footprint. For that we need one planet farming as well as one planet living - one planet farming which minimises the impact on the environment of food production and consumption, and which maximises its contribution to renewal of the natural environment

The window of opportunity to avoid dangerous climate change is closing more quickly than previously thought.

The science is getting worse faster than the politics is getting better.