Related by context. Frequent words. (Click for all words.) 56 carbon emitting 53 CO2 53 emit greenhouse gases 53 carbon emissions 53 fossil fuel 52 carbon dioxide emission 52 burning fossil fuels 52 polluting 51 CO2 emissions 51 carbon dioxide emissions 51 greenhouse gasses 51 greenhouse gases 51 carbon dioxide 50 pollute 50 CO2 emission 49 fossil fuels 49 emissions 48 carbon emission 48 C# emissions 48 environmentally damaging 47 reduce carbon emissions 46 environmentally harmful 46 carbon dioxide CO2 46 greenhouse gas emissions 46 carbon 46 environmentally unfriendly 46 carbon dioxide emitted 45 greenhouse emissions 45 emission 45 greenhouse gas 45 GHGs 45 emission reductions 45 emitting 44 harmful pollutants 44 reducing carbon emissions 44 carbon dioxide CO2 emissions 43 Fossil fuels 43 atmospheric CO2 43 Greenhouse gases 43 polluting industries 42 environmentally destructive 42 carbon credits 42 #g/km [001] 42 carbon offsetting 42 global warming 42 pollution 42 emit 41 Carbon Dioxide 41 greenhouse gas emission 41 exhaust gases 41 pollutes 41 harmful 41 GHG emissions 41 renewables 40 exhaust emissions 40 Carbon dioxide 40 emission reduction 40 heat trapping gases 40 combustion 40 greenhouse gases emitted 40 anthropogenic 40 polluter 40 internal combustion 40 NOx emissions 40 biofuel 40 gases 39 unsustainable 39 coal fired 39 NOx 39 finite resource 39 water vapor 39 sulfur dioxide 39 particulate emissions 39 biofuels 39 GHG 39 reducing CO2 emissions 39 gasses 39 internal combustion engine 39 climate change 39 absorb carbon dioxide 39 deforestation 39 bio fuels 39 tar sands 38 uneconomical 38 carbon sinks 38 emitters 38 Kyoto Treaty 38 combustion engine 38 cleaner fuels 38 Global warming 38 polluters 38 CFCs 38 methane 38 tailpipe emissions 38 externalities 38 gas guzzlers 38 HFCs 38 Emissions 37 greenhouse gas GHG emissions 37 supercritical 37 harming