1. 1Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Cambridge, MA, USA
2. 2Present Address: Yale School of Environment, Yale University, New Haven, CT, USA
3. 3Center for Climate, Health, and the Global Environment, Harvard T.H. Chan School of Public Health, Boston, MA, USA
4. 4John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
5. 5Present Address: AAAS Science and Technology Policy Fellowship Program, U.S. Department of State, Washington, DC, USA
6. 6Laboratory for Aviation and the Environment, Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA, USA
7. 7Joint Program on the Science and Policy of Global Change, Massachusetts Institute of Technology, Cambridge, MA, USA
8. 8Present Address: Department of Environmental Health, Boston University School of Public Health, Boston, MA, USA