1. Globla warming-facts, assessment, countermeasures;Kessel;J. Pet. Sci. Eng.,2000
2. Energy for the new millennium;Goldemberg;AMBIO: A J. Hum. Environ.,2001
3. R. Gilbert, A. Perl, Energy and transport futures. A report prepared for national round table on the environment and the economy, University of Calgary, 1–96.
4. Global Energy & CO2 Status Report, IEA, 2017.
5. IEA, CO2 Emissions from Fuel Combustion, IEA.