1) Boden, T.A., G. Marland, and R.J. Andres. 2010. Global, Regional, and National Fossil-Fuel CO2 Emissions. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A. doi 10.3334/CDIAC/00001_V2010 http://cdiac.ornl.gov/trends/emis/tre_glob.html

2) Ernst Worrell et al, “Carbon dioxide emissions from the global cement industry”, Annual Review of Energy and Environment, Vol. 26 (2001), pp. 303-29

3) B.D. Hong and E. R. Slatick, Carbon Dioxide Emission Factors for Coal, Energy Information Administration, originally published in Energy Information Administration, Quarterly Coal Report,
January-April 1994, DOE/EIA-0121(94/Q1) (Washington, DC, August 1994), pp. 1-8, http://www.eia.doe.gov/cneaf/coal/quarterly/co2_article/co2.html

4) United Nations Framework Convention on Climate Change (UNFCCC), Total aggregate greenhouse gas emissions of individual Annex I Parties, 1990-2008 (excluding LULUCF), http://www.wri.org/resources/data-sets/unfccc-annex-i-ghg-emissions-0 

5) ** 1990 and 2005 estimates for China: by International Energy Agency, quoted in J. Leggett, China’s Greenhouse Gas Emissions and Mitigation Policies, CRS Report for Congress, Sep 2008 pp CR15, http://www.fas.org/sgp/crs/row/RL34659.pdf

6) * 1994 and 2005 estimates for India: A. Atteridge, et al, Reducing Greenhouse Gas Emissions in India, Report for the Swedish Ministry of Environment, October 2009. https://mediamanager.sei.org/documents/Publications/Climate-mitigation-adaptation/reducinggreenhousegasemissions-india.pdf