Mark Stevenson is a market gardener growing organic fruit and vegetables in Warborough for markets in Oxford and Wallingford. The farm supports a rich biodiversity, including government-listed BAP species. Previously he was head of maths at an inner-city secondary school. He took an M Litt in philosophy at Oxford University and has taught ethics and philosophy in the adult education sector. He lives in Dorchester with his partner and their daughter. He has been a parish councillor, chairman of the Dorchester Carbon Project, treasurer of the Wallingford Local Producers Market and a school governor