Related by context. Frequent words. (Click for all words.) 60 greenhouse gas emitter 56 polluter 54 emitters 53 emitter 53 greenhouse gas emitters 51 greenhouse gas 50 greenhouse gases 50 greenhouse gas emissions 49 polluters 48 emission reductions 48 emissions 47 carbon emissions 47 carbon dioxide emissions 47 greenhouse gasses 47 GHGs 46 GHG emissions 46 carbon emission 45 greenhouse gas emission 45 pollutant 44 emission reduction 44 greenhouse emissions 44 greenhouse gas GHG emissions 44 Kyoto Treaty 44 fossil fuel 44 carbon dioxide emission 44 emission 43 industrialized countries 43 CO2 emissions 43 global warming 43 Greenhouse gases 43 carbon dioxide 43 CO2 43 industrialized 42 GHG 42 ozone depletion 42 climate change 42 fossil fuels 42 Kyoto Protocol 42 air pollution 42 burning fossil fuels 41 particulate pollution 41 carbon dioxide CO2 41 Kyoto accord 40 per capita 40 heat trapping gases 40 carbon dioxide CO2 emissions 40 carbon 40 Kyoto protocol 40 global warming gases 40 landmass 40 Emissions 40 CO2 emission 40 HFCs 40 industrialized nations 39 Greenhouse Gas 39 reducing carbon emissions 39 pollution 39 emerging economies 39 Clean Development Mechanism 39 pollutants 39 superpower 38 Montreal Protocol 38 C# emissions 38 nations 38 tailpipe emissions 38 acid rain 38 heat trapping greenhouse gases 38 emit greenhouse gases 38 CFCs 38 heat trapping 38 Intergovernmental Panel 37 atmospheric CO2 37 atmospheric carbon dioxide 37 Kyoto pact 37 Kyoto 37 Climate Change IPCC 37 carbon emitting 37 Carbon Dioxide 37 greenhouse gases emitted 37 Kyoto treaty 37 NOx emissions 37 polluting 37 countries 37 carbon sinks 36 combating global warming 36 reduce carbon emissions 36 CDM 36 planet 36 particulate matter 36 reducing CO2 emissions 36 sole superpower 36 megacities 36 economies 36 anthropogenic 36 Waxman Markey 36 China 36 carbon credits 36 UNFCCC 35 Environment Programme 35 ozone depleting substances 35 emitting