1MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, UK
2The Earth Institute, Columbia University, New York, NY USA
3Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY USA
4French Institute for Demographic Studies (INED), Paris, France
5Population Studies Center, Department of Sociology, University of Pennsylvania, Philadelphia, PA USA
6Directorate for Social Statistics and Population Census, Italian National Institute of Statistics (Istat), Rome, Italy
7Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, UK
8Department of Natural Sciences, Middlesex University London, London, UK
9Independent Researcher, Geneva, Switzerland
10Abdul Latif Jameel Institute for Disease and Emergency Analytics, Imperial College London, London, UK
11Regional Institute for Population Studies, University of Ghana, Legon, Ghana