Related by context. Frequent words. (Click for all words.) 51 belching 49 smokestacks 49 exhaust fumes 47 smog 47 polluting 47 sooty 46 gas guzzling 45 diesel powered 45 pollution 45 smoggy 45 billowing smoke 44 acrid 44 smokestack 44 rusting 43 belch 43 smoke billowing 43 noxious 43 hulks 42 smoke 42 soot 41 emission 41 CO2 emission 41 emitting 41 grimy 41 tailpipes 41 automobiles 40 smoke billowed 40 idling 40 exhaust emissions 40 air pollution 39 junkyard 39 gas guzzler 39 emissions 39 emitted 39 diesel 39 smoky 39 diesel exhaust 38 scrapyard 38 rusted 38 exhaust pipes 38 internal combustion 38 fumes 38 chimneys 38 junked 38 black smoke billowed 38 haze 38 gleaming 37 polluting industries 37 stench 37 junkyards 37 tailpipe emissions 37 eyesores 37 Emissions 37 decrepit 37 CO2 emissions 36 toxic fumes 36 tailpipe 36 carbon dioxide emissions 36 cigarette smoke 36 trucks 36 noisy 36 eyesore 36 diesels 36 fume 36 smelly 36 gas guzzlers 35 cars 35 hulk 35 infernal 35 effluents 35 burning 35 pollute 35 rickety 35 trundling 35 smokey 35 whirring 35 decaying 35 dilapidated 35 inky 35 billowing 35 rumbling 35 polluted 35 garbage dumps 35 diesel engines 35 neon lights 34 coal fired 34 acid rain 34 pollutant 34 billow 34 emit 34 black smoke billowing 34 nitrogen oxide 34 carbon emissions 34 wafting 34 exhaust 34 neon 34 Hummers 34 wheezing 33 internal combustion engine 33 #x#s [002] 33 skyscrapers