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close this bookThe Global Greenhouse Regime. Who Pays? (UNU, 1993, 382 p.)
close this folderPart I Measuring responsibility
close this folder3 Assessing emissions: five approaches compared
View the document(introduction...)
View the documentIntroduction
View the documentComprehensiveness compared
View the documentAccuracy by category
View the documentRegional and national emissions by source
View the documentConclusions
View the documentReferences
View the documentAppendix A: Estimates of greenhouse gas emissions
View the documentAppendix B: Calculating cumulative and current emissions

Appendix A: Estimates of greenhouse gas emissions

This list gives estimates of the emissions used in this chapter.

1 Cumulative CO2 energy (1860-1986):
  Fossil fuel combustion: 178 GT carbon as CO2 (CO2 C)
2 Cumulative CO2 (1860-1986):
  Fossil fuel combustion: 178 GT CO2 C
  Land use changes: 66 GT CO2 C
  Total: 244 GT CO2 C
3 Current CO2 energy (1988):
  Fossil fuel combustion: 5.4 GT CO2 C/year
4 Partial CH4 and CO2 (1988):
  Fossil fuel combustion: 5.4 GT CO2 C
  Land use changes: 0.9 GT CO2 C
  Landfills: 36 MT CH4 (170 MT Carbon Equivalence (CE))
  Fossil fuel production: 74 MT CH4 (424 MT CE)
  Total: 6.9 GT CE
5 Comprehensive emissions (1988)
  In addition to the above:  
  Fossil and wood combustion: 201 GT CO C (341 MT CE)
    1.3 MT N2O (103 MT CE)
  Cement production: 150 MT CO2 C
  Halocarbons: 1.4 MT CFC-11 equivalent (1,337 MT CE)
  Biomass burning: 36 MT CH4 (170 MT CE),
    276 MT CO C (251 MT CE),
    1.6 MT N2O (126 MT CE)
  Soil release, tropical pasture: 0.1 MT N2O (8 MT CE)
  Enteric fermentation: 75 MT CH4 (354 MT CE)
  Animal wastes: 28 MT CH4 (132 MT CE)
  Rice cultivation: 98 MT CH4 (463 MT CE)
  Fertilizer consumption: 0.8 MT N2O (63 MT CE)
  Total: 10.3 GT CE