Related by context. Frequent words. (Click for all words.) 64 emit CO2 61 emit carbon dioxide 57 emit greenhouse gases 57 emitting greenhouse gases 52 potent greenhouse gas 52 pollute 51 carbon 51 carbon credits 51 carbon emitted 50 carbon dioxide emission 50 carbon emission reductions 50 carbon emission 50 smog forming pollutants 50 Emission Trading Scheme 49 certified emission reductions 49 mercury emitted 49 carbon emissions 49 heat trapping carbon emissions 48 Carbon offsets 48 polluting 48 emit 48 CO2 emitted 48 nitrogen oxide NOx emissions 48 sulfur dioxide nitrogen oxide 48 greenhouse emission 47 polluters 47 carbon dioxide emitted 47 emitting carbon dioxide 47 environmentally beneficial 47 GHG emission reduction 47 emission 46 fossil fuel 46 polluter pays 46 emmissions 46 carbon dioxide emissions 46 pollute waterways 46 emissions 46 greenhouse gases 46 CO2 emission reduction 46 nonrenewable resources 46 CO2 equivalents 46 carbon emitting 45 CO2 emission 45 polluting industries 45 CO -2 45 IGCC plants 45 smog forming 45 emission reduction 45 polution 45 Aluminum cans 45 Coal gasification 45 HFC #a 45 sulfur dioxide nitrogen oxides 45 CO ² 45 environmentally harmful 45 emission allowances 45 sulfur dioxide SO2 45 recyclable plastics 45 greenhouse gas emission reductions 45 CO ² emissions 45 pollutants emitted 45 hydro biomass 45 Co2 emissions 45 subsidize 45 heat trapping gases emitted 45 negative externalities 44 Burning fossil fuels 44 warming gases 44 fluorocarbons 44 reduce carbon emissions 44 deregulates 44 By Laurie Kulikowski 44 sequester carbon dioxide 44 recycle plastic bags 44 VERs 44 purchasing carbon offsets 44 reduce greenhouse gas 44 reducing carbon emissions 44 fossil fuels 44 adipic acid 44 CO2 44 allsports.com 44 greenhouse gas 44 carbon dioxide 44 greenhouse gases GHG 44 smog forming nitrogen oxides 44 Inflation erodes 44 Carbon Reduction Commitment CRC 44 burning fossil fuels 44 emission reductions 44 CO2 emissions 43 biomass geothermal 43 greenhouse gas emissions 43 CO2 emitting 43 gasify 43 gasifying 43 environmentally damaging 43 greenhouse gasses 43 pollution 43 Emissions Trading Scheme ETS 43 By Laurelle Gilbert