• 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.

    "Vegetarian diet is better for the planet, says Lord Stern" by David Batty and David Adam, October 26, 2009.