1. National Center for Disaster Preparedness, Earth Institute, Columbia University, New York, New York, USA
2. Cornell Program on Applied Demographics, Cornell University, Ithaca, New York, USA
3. Center for Climate Systems Research, Columbia University, New York, New York, USA
4. Department of Social and Environmental Health Research, and
5. Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London, UK
6. Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York, USA