Related by context. Frequent words. (Click for all words.) 56 pollutants emitted 54 pollute 54 Nitrogen oxides 53 mercury emitted 53 Burning fossil fuels 53 polluting groundwater 52 polluting 52 emit carbon dioxide 51 gases emitted 51 heat trapping gases emitted 51 radioactive byproducts 51 biomass combustion 51 potent greenhouse gas 51 absorbs carbon dioxide 50 pollute waterways 50 emitting carbon dioxide 50 emit CO2 50 sulfur dioxide nitrogen oxides 50 smog forming pollutants 49 emitting greenhouse gases 49 contaminating groundwater 49 sulfur dioxide nitrogen oxide 48 smokestack emissions 48 polluting waterways 48 particles emitted 48 sulfur dioxide SO2 48 pollution 47 smokestacks 47 emit greenhouse gases 47 Methyl bromide 47 emmissions 47 acid rain 47 sequester carbon dioxide 47 radioactively contaminated 47 polution 47 emitting 47 smog forming 47 methane CH4 47 noxious chemicals 46 Volatile organic compounds 46 herbicides pesticides 46 pollutes 46 Asbestos fibers 46 pollutions 46 windmills solar panels 46 noxious odors 46 fluorocarbons 46 harmful pollutants 46 gases 46 Edge Moor 46 burning fossil fuels 46 carcinogenic chemicals 45 respiratory irritant 45 combustible gases 45 pollutants 45 Sulfur dioxide 45 emitted 45 dioxide 45 contaminate drinking 45 gaseous emissions 45 nitrous oxides 45 absorb carbon dioxide 45 polluters 45 POLLUTION 44 mold fungi 44 deplete oxygen 44 sulfur dioxides 44 carbon dioxide 44 emit 44 oxidising 44 greenhouse gases emitted 44 heavily polluted 44 harmful gases 44 sulfur oxide 44 greenhouse gases 44 harmful ultraviolet radiation 44 warming gases 44 nitrogen trifluoride 44 spew radiation 44 emissions 43 pollutant emissions 43 toxic pollutants 43 atmospheric pollutants 43 phosphine 43 contaminate groundwater 43 befouling 43 cattle feedlots 43 hydro biomass 43 noxious 43 Toxic chemicals 43 Prevailing winds 43 smokestack industries 43 carbon emitting 43 poisonous 43 toxic gases 43 sulfur dioxide 43 nitrous oxide emissions 43 spewed ash 43 soot pollution 43 flue gases 43 Diesel exhaust