1. World Urbanization Prospects: The 2018 Revision (United Nations Department of Economic and Social Affairs, Population Division, 2019).
2. Transforming our World: the 2030 Agenda for Sustainable Development (United Nations, 2015); https://go.nature.com/3BJXh7a
3. Barnett, C. & Parnell, S. Environ. Urban. 28, 87–98 (2016).
4. Cohen, M. A. Environ. Impact Assess. Rev. 16, 429–433 (1996).
5. Revi, A. et al. in Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects (eds Field, C. B. et al.) 535–612 (IPCC, Cambridge Univ. Press, 2014).