1. Center for Health and the Global Environment, University of Washington, Seattle, Washington 98195, USA;
2. School of Sustainability, Arizona State University, Tempe, Arizona 85287, USA
3. Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York 10964, USA
4. Department of Environmental, Agricultural, and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
5. School of Geographical Sciences, Arizona State University, Tempe, Arizona 85287, USA
6. Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, Washington 98195, USA
7. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, M5S 2S2, Canada
8. Geography Department, University of Colorado, Boulder, Colorado 80309, USA
9. Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA
10. Department of Medicine, School of Medicine, University of Washington, Seattle, Washington 98195, USA
11. Faculty of Environment, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada