Greenhouse Gas Source Share Carbon Dioxide Power Stations 21.3875 Carbon Dioxide Waste disposal and treatment 0 Carbon Dioxide Land use and biomass burning 6.5975 Carbon Dioxide Residential. commercial. and other sources 9.3525 Carbon Dioxide Fossil fuel retrieval. processing. and distribution 6.09 Carbon Dioxide Agricultural byproducts 0 Carbon Dioxide Transportation fuels 13.92 Carbon Dioxide Industrial processes 14.935 Methane Power Stations 0.1647 Methane Waste disposal and treatment 3.3123 Methane Land use and biomass burning 1.2078 Methane Residential. commercial. and other sources 0.8784 Methane Fossil fuel retrieval. processing. and distribution 5.4168 Methane Agricultural byproducts 7.32 Methane Transportation fuels 0 Methane Industrial processes 0 Nitrous Ocide Power Stations 0.1034 Nitrous Ocide Waste disposal and treatment 0.2162 Nitrous Ocide Land use and biomass burning 2.444 Nitrous Ocide Residential. commercial. and other sources 0.141 Nitrous Ocide Fossil fuel retrieval. processing. and distribution 0 Nitrous Ocide Agricultural byproducts 5.828 Nitrous Ocide Transportation fuels 0.1128 Nitrous Ocide Industrial processes 0.5546