1 Department of Environmental Health and Epidemiology, Harvard T.H. Chan School of Public Health, 401 Park Drive, Landmark Center, Boston, MA 02115, USA.
2 Stanford School of Engineering, Stanford University, 530 Escondido Mall #40, Stanford, CA 94305, USA.
3 GreenRoots, 227 Marginal Street, Suite 1, Chelsea, MA 02150, USA.
4 350.org, PO Box 843004, Boston, MA 02284-3004, USA.
5 Middlebury College, Middlebury, VT 05766, USA.
6 Health Care Without Harm, Boston, MA 02130, USA.
7 Cambridge Health Alliance, Center for Health Equity Education and Advocacy, 1493 Cambridge Street, Cambridge, MA 02138, USA.
8 Instructor Medicine, Department of Global Health and Social Medicine, Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA.