Related by context. Frequent words. (Click for all words.) 55 reducing greenhouse gas 53 emitting carbon dioxide 52 emitting greenhouse gases 51 regulating greenhouse gases 51 reducing carbon emissions 51 preindustrial levels 51 decarbonisation 51 reducing CO2 emissions 51 emit CO2 51 regulating greenhouse gas 50 curbing greenhouse gas 50 greenhouse gases GHGs 50 Carbon sequestration 50 gigatonnes 49 atmospheric concentrations 49 nitrous oxides 49 greenhouse gases 49 greenhouse gases GHG 48 GHGs 48 reduce greenhouse gas 48 GHG reduction 48 largest emitter 48 carbon dioxide methane nitrous 47 GHG reductions 47 sequestering carbon 47 greenhouse gasses 47 greenhouse gas emission reductions 47 CO -2 47 curbing carbon emissions 46 gigatons 46 combusting 46 acidifying 46 sulfur dioxide nitrogen oxide 46 carbon dioxide 45 burning fossil fuels 45 emmissions 45 emitting 45 absorbing carbon dioxide 45 carbon dioxide emissions 45 greenhouse gas emissions 45 greenhouse gas 45 greenhouse gas concentrations 45 carbon emission reductions 45 co2 45 greenhouse emission 45 sulfur oxide 45 Greenhouse gases 45 sulfur dioxide SO2 45 isoprene 44 legally binding instrument 44 CO ² 44 greenhouses gases 44 Ocean acidification 44 carbon emitter 44 greenhouse emissions 44 emission reductions 44 pollutant 44 renewable feedstocks 44 geosequestration 44 carbon dioxide CO2 emissions 44 polluter pays 44 reducing 44 Industrialised countries 44 modal shift 44 emitters 44 radiative forcing 44 deplete oxygen 44 sulfur dioxide nitrogen oxides 44 Greenhouse Gases 44 fossil fuels 44 warming gases 44 greenhouse gases emitted 43 GHG emission 43 carbon emissions 43 CO2 emissions 43 combating global warming 43 pollutants emitted 43 Co2 43 megatonnes 43 CO2 43 Ireland rids itself 43 greenhouse gases endanger 43 Kyoto Protocols 43 emissions 43 ANDREA R. MIHAILESCU 43 carbon dioxide CO2 43 heat trapping carbon emissions 43 By Julian Pecquet 43 emit carbon dioxide 43 ocean fertilization 43 Emissions Trading Scheme ETS 43 decarbonise 43 carbon dioxide emission 43 By DUSTIN BLEIZEFFER 43 CO2 Emissions 43 curbing greenhouse gases 42 biogenic 42 pollutant emissions 42 heat trapping greenhouse gas 42 SF6 42 regulate greenhouse gases