Jonathon Porritt: I was born in 1950. The next couple of decades flowed by effortlessly at Eton, Magdalen College, Oxford, and messing around planting trees and farming in New Zealand and Australia. I first got involved with environmental issues in 1974, at the same time as I became a teacher in a West London comprehensive, which I absolutely loved. Ten years later (during which I was also very involved in the Green Party),  I left teaching to become Director of Friends of the Earth where I stayed until 1991, just prior to the Earth Summit in Rio de Janeiro in 1992 – which for me, was a life-changing experience. In 1996, we set up Forum for the Future, which remains my ‘home base’ in terms of all the different things I do today. I was Chair of the UK Sustainable Development Commission between 2000 and 2009. I got married in 1986, and we have two daughters Eleanor and Rebecca. At the moment, I'm on the world tour for my latest book, The World We Made.