1. IPCC (2013) Climate Change 2013: The physical science basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, ed Stocker T (Cambridge Univ Press, Cambridge, UK), pp 33–115.
2. When will China achieve its carbon emission peak?
3. UN (2015) World Urbanization Prospects: The 2015 Revision (United Nations Department of Economic and Social Affairs, Population Division, New York).
4. The World Bank (2015) World Bank Open Data. Available at https://data.worldbank.org. Accessed May 25, 2016.
5. Rapid loss of lakes on the Mongolian Plateau