1. Berlin, Germany.
2. Joint Institute for Regional Earth System Science & Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
3. Earth System Science Center, Penn State University, University Park, PA 16802, USA.
4. Universiteit Antwerpen, Wilrijk, Antwerp, Belgium.
5. Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium.
6. Université de Lausanne, Lausanne, Switzerland.
7. Erasmus University, Rotterdam, 3000 DR Rotterdam, Netherlands.
8. Helsinki Institute of Sustainability Science, Faculty of Social Sciences, University of Helsinki, 00014 Helsinki, Finland.
9. Potsdam Institute for Climate Impact Research, 14473 Potsdam, Germany.
10. Center for Global Change and Sustainability, University of Natural Resources and Life Sciences, 1180 Vienna, Austria.
11. Wegener Center for Climate and Global Change, University of Graz, 8010 Graz, Austria.
12. Institute for Atmospheric and Climate Science, ETH Zürich, 8092 Zürich, Switzerland.
13. École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
14. Department of Political Science and Public Policy, University of Waikato, Hamilton, Waikato, New Zealand.
15. Scientists Warning UK, Cambridge, UK.
16. The University of Manchester, UK.
17. Uppsala University, Uppsala, Sweden.
18. Polyfuture Institute SWC, Stockholm, Sweden.
19. Department of Environmental Science and Analytical Chemistry, Stockholm University, 106 91 Stockholm, Sweden.
20. University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
21. Climate Center, Texas Tech University, Lubbock, TX 79409, USA.