1 Environmental Defense Fund in Boston, Massachusetts, USA, and adjunct associate professor of international and public affairs at Columbia University, New York, USA.
2 Chalmers University of Technology, Gothenburg, Sweden.
3 University of Gothenburg, Sweden.
4 Woodrow Wilson School and the Department of Geosciences, Princeton University, New Jersey, USA.
5 Environmental Defense Fund in Boston, Massachusetts, USA.
6 University of Gothenburg, Sweden, and senior contributing economist at the Environmental Defense Fund in New York, USA.