1. Department of Political Science, University of Oslo, 0317 Oslo, Norway;
2. Department of Political Science, Stockholm University, SE-106 91 Stockholm, Sweden
3. School of International Development, University of East Anglia, Norwich NR4 7TJ, United Kingdom;
4. Tyndall Centre for Climate Change Research, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
5. Centre for Climate Science and Policy Research, Linköping University, 581 83 Linköping, Sweden;
6. Institute for Science, Innovation and Society, Oxford University, Oxford OX2 6JP, United Kingdom
7. Stockholm Environment Institute, 104 51 Stockholm, Sweden