1. Climate Analytics, Berlin, Germany.
2. Integrative Research Institute on Transformations of Human-Environment Systems, Humboldt University, Berlin, Germany.
3. Energy Program, International Institute for Applied Systems Analysis, Laxenburg, Austria.
4. Electric Power Research Institute, Palo Alto, CA, USA.
5. Howard H. Baker Jr. Center for Public Policy, University of Tennessee, Knoxville, TN, USA.
6. Grantham Institute for Climate Change and the Environment, Imperial College London, London, UK.