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Table 2 Carbon majors cumulative emissions 1854–2010, by source category

From: Tracing anthropogenic carbon dioxide and methane emissions to fossil fuel and cement producers, 1854–2010

  Entities Total emissions Percent of
Combustion # GtCO2e Carbon Majors
Oil & NGLs 55 365.73 40.00 %
Natural gas 56 120.11 13.14 %
Coal 36 329.60 36.05 %
Flaring 56 6.04 0.66 %
Own fuel use 56 7.12 0.78 %
Cement 7 13.21 1.45 %
Vented CO2 54 4.83 0.53 %
Fugitive methane 83 67.62 7.40 %
Total 90 914.25 100.0 %
CDIAC global emissions 1751–2010   1,450.33  
Carbon Majors of global emissions   63.04 %