1. Rowland, J., World Coal, 2014, vol. 11, pp. 12–17.
2. The Future of Coal: Options for a Carbon-Constrained World. An Interdisciplinary MIT Study, Cambridge, MA: MIT Press, 2007.
3. Renewables 2017: Analysis and Forecasts to 2022, Paris: Int. Energy Agency, 2017, pp. 1–8.
4. COP21, Proc. Conf. of the Parties Twenty First Session, Paris, 2015, p. 32.
5. Oboirien, B., North, B., Obayopo, S., Odusote, J., and Sadiku, E., Energy Strategy Rev., 2018, vol. 20, pp. 64–70.