Adaptation is the only means to reduce the now-unavoidable costs of climate change over the next few decades

The one way of guaranteeing to fail is to assume that we will.

Meat is a wasteful use of water and creates a lot of greenhouse gases. It puts enormous pressure on the world's resources. A vegetarian diet is better.

Climate change will affect the basic elements of life for people around the world - access to water, food production, health, and the environment. Hundreds of millions of people could suffer hunger, water shortages and coastal flooding as the world warms.

I've never really had much of a career plan, and interesting opportunities kept cropping up.

There is still time to avoid the worst impacts of climate change, if we take strong action now.

I think it's important that people think about what they are doing and that includes what they are eating. I am 61 now and attitudes towards drinking and driving have changed radically since I was a student. People change their notion of what is responsible. They will increasingly ask about the carbon content of their food.