1. REN 21 GSR global status report: Available at: http://www.ren21.net/wp-content/uploads/2017/06/17-8399_GSR_2017_Full_Report_0621_Opt.pdf. pp137 et seqq (accessed July 26, 2018).
2. Faunce T.A. and Charles C.: Nanotechnology, plasma, hydrogen from artificial photosynthesis and fuel cells: Powering the developing world to the sustainocene. In Nanotechnology Toward the Sustainocene, Faunce T.A., ed. (Pan Stanford, Singapore, 2015); pp. 241–253.
3. UN Paris Agreement, status of ratification update: Availabe at: http://unfccc.int/paris_agreement/items/9444.php (accessed November 6, 2017).
4. International Energy Agency: Tracking clean energy report, 2017.
5. REN 21 global renewables report: Available at: http://www.ren21.net/future-of-renewables/global-futures-report/ (accessed July 26, 2018).