Related by context. Frequent words. (Click for all words.) 79 polluters 61 emitters 60 polluting 59 pollution 59 emitter 58 greenhouse gas 57 pollutant 56 emissions 54 greenhouse gases 53 emission reduction 52 carbon dioxide emissions 52 polluted 52 greenhouse gas emissions 51 carbon emissions 51 emission 51 greenhouse emissions 51 pollutants 50 air pollution 49 pollute 48 GHG emissions 48 CO2 emissions 47 Emissions 46 violator 46 coal fired 46 industrialized 45 environmental 45 Pollution 45 carbon dioxide 44 EPA 44 environmentalists 44 CO2 43 mercury emissions 43 Environmental Protection Agency 43 carbon 43 climate change 43 dirtiest 43 fossil fuel 43 toxic waste 42 reduce carbon emissions 42 coal 42 global warming 42 Sierra Club 42 Clean Air 42 environmentalist 41 tar sands 41 Greenpeace 41 Climate Action 40 Kyoto Protocol 40 Clean Water Act 40 laggard 40 acid rain 40 carbon capture 40 fossil fuels 40 Superfund 39 renewables 39 recycler 39 recyclers 39 smog 39 emitting 38 greenest 38 oilsands 38 sulfur dioxide 37 MTBE 37 environmentally 37 cleanest 37 toxic chemicals 37 industrialized nations 37 oil spill 36 Climate Change 36 contaminant 36 renewable energy 36 Environmental 36 brownfield 36 oil sands 36 Environmental Quality 36 cleanup 36 industrialized countries 36 hazardous waste 36 particulate matter 36 wind farms 35 Exxon 35 abatement 35 landowner 35 NRDC 35 Environmentalists 35 carbon credits 35 smelters 35 wind farm 35 Climate 35 steelmakers 35 deforestation 35 smelter 35 exporter 34 Environmental Protection 34 Global Warming 34 biofuel 34 DEQ 34 soot 34 coal mining 34 culprit 34 superpower