1. Woods Hole Research Center, Falmouth, MA 02540, USA.
2. Stanford Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA.
3. Department of Earth System Science, Stanford University, Stanford, CA 94305, USA.
4. Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22904, USA.
5. Woodrow Wilson International Center for Scholars, Washington, DC 20004, USA.
6. Georgetown University Law Center, Washington, DC 20001, USA.
7. Global Policy Laboratory, Goldman School of Public Policy, University of California, Berkeley, CA 94720, USA.
8. National Bureau of Economic Research, Cambridge, MA 02138, USA.
9. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
10. Harvard University Center for the Environment, Harvard University, Cambridge, MA 02138, USA.
11. Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA.
12. SETE, CNRS, and University P-Sabatier, Moulis 09200, France.
13. School of Biological and Marine Sciences, University of Plymouth, Plymouth, Devon PL4 8AA, UK.
14. Department of Geological Sciences, University of Texas at Austin, Austin, TX 78712, USA.
15. Analysis Group, Denver, CO 80202, USA.
16. Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA.