1. Kennedy, C., Ibrahim, N. & Hoornweg, D. Low-carbon infrastructure strategies for cities. Nat. Clim. Change 4, 343–346 (2014).
2. Clark, W. & Cooke, G. Smart Green Cities: Toward a Carbon Neutral World (Routledge, 2016).
3. Pathways to a Low-Carbon Economy: Version 2 of the Global Greenhouse Gas Abatement Cost Curve (McKinsey & Company, 2009).
4. Pye, S., Watkiss, P., Savage, M. & Blyth, M. The Economics of Low Carbon, Climate Resilient Patterns of Growth in Developing Countries: A Review of the Evidence (Stockholm Environment Institute, 2010).
5. Renewable Power Generation Costs in 2014: International Renewable Energy Agency (IRENA, 2015).