1. U. EIA, Annual Energy Outlook 2015: With Projections to 2040, United States Energy Information Administration, Washington, 2015.
2. O. Edenhofer, R. Pichs-Madruga, Y. Sokona, E. Farahani, S. Kadner, K. Seyboth, IPCC, 2014: Climate Change 2014: Mitigation of Climate Change. Contribution of Working Group III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Transport, 2014.
3. Rapid growth in CO2 emissions after the 2008–2009 global financial crisis;Peters;Nat. Clim. Change,2012
4. M.R. Raupach, G. Marland, P. Ciais, C. Le Quéré, J.G. Canadell, G. Klepper, C.B. Field, global and regional drivers of accelerating CO2 emissions, in: Proceedings of the National Academy of Sciences, 104, 2007, pp. 10288–10293.
5. Hydrogen as an energy carrier: prospects and challenges;Mazloomi;Renew. Sustain. Energy Rev.,2012