Related by context. Frequent words. (Click for all words.) 88 GHG emissions 84 greenhouse gas emissions 80 carbon dioxide emissions 80 carbon emissions 78 CO2 emissions 76 greenhouse emissions 75 emissions 75 greenhouse gases 74 carbon emission 73 greenhouse gas emission 73 greenhouse gasses 71 emission reductions 71 reduce carbon emissions 71 greenhouse gas 70 GHG 67 emission reduction 66 carbon footprint 66 reducing carbon emissions 63 emission 62 CO2 61 Emissions 61 carbon footprints 61 heat trapping gases 59 mercury emissions 58 carbon dioxide 58 tailpipe emissions 57 carbon dioxide CO2 56 carbon 55 carbon neutral 53 pollution 52 reduce greenhouse gas 52 nitrogen oxides 51 air pollution 51 NOx 51 fossil fuel 51 fossil fuels 51 mercury pollution 50 climate change 50 environmental impacts 49 carbon offsets 49 global warming 49 pollutants 49 exhaust emissions 49 nitrogen oxide 49 reducing greenhouse gas 47 emitters 47 atmospheric carbon dioxide 47 carbon credits 47 pollutant 46 Kyoto Protocol 46 environmental sustainability 45 zero emission 45 renewable energy 45 Low Carbon 45 burning fossil fuels 45 Climate Change 45 deforestation 44 polluter 44 carbon sequestration 44 Montreal Protocol 43 renewables 43 polluters 43 renewable 43 sulfur dioxide 43 Climate Action 43 biomass 43 Sustainability 42 biofuels 42 VOCs 42 Energy Efficiency 42 Kyoto protocol 42 environmentally responsible 42 particulate matter 42 environmentally sound 42 environmentally sustainable 41 renewable fuels 41 carbon capture 41 biofuel 41 environmental stewardship 41 sustainability 41 Kyoto 41 greenest 40 volatile organic compounds 40 environmentally friendly 40 salt intake 40 Copenhagen Accord 40 CARB 39 acrylamide 39 greening 39 polluting 39 alternative fuels 39 Environment Programme 39 methane 39 consumption 39 hybrid electric 39 toxic chemicals 39 UNFCCC 39 efficiency 39 Clean Air 38 Climate Change IPCC 38 Kyoto treaty