1. Global Sustainability Institute, Anglia Ruskin University, Cambridge CB1 1PT, UK
2. Department of Environment and Geography, University of York, York YO10 5NG, UK
3. Met Office Hadley Centre, Met Office, Fitz Roy Road, Exeter EX1 3PB, UK
4. School of Biological Sciences, Faculty of Life Sciences, University of Bristol, Bristol BS8 1TH, UK
5. School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK
6. Centre for Food Policy, City, University of London, Northampton Square, London EC1V 0HB, UK