1. Human Behaviour and Cultural Evolution Group, Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn TR10 9FE, UK
2. Department of Anthropology, University of California Davis, Davis, CA 95616, USA
3. Santa Fe Institute, Santa Fe, NM 87506, USA
4. Max-Planck Institute for Evolutionary Anthropology, 04103 Leipzig, Germany
5. Stockholm Resilience Centre, Stockholm University, SE-106 91 Stockholm, Sweden
6. Beijer Institute of Ecological Economics, The Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
7. Konrad Lorenz Institute for Evolution and Cognition Research, A-3400 Klosterneuburg, Austria
8. Department of Economics, University of Bologna, 40126 Bologna, Italy
9. Grantham Research Institute on Climate Change and the Environment, London School of Economics, London WC2A 2AE, UK
10. Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Sciences, SE-104 05 Stockholm, Sweden
11. Mitchell Center for Sustainability Solutions and School of Economics, University of Maine, Orono, ME 04469-5710, USA