Ключевые слова: air, atmosphere, building, business, carbon, chemical, chimney, city, climate, cloud, co2, coal, damage, dioxide, dirty, ecology, electricity, emission, energy, environment, exhaust, factory, fuel, fume, gas, global, industry, manufacturing, metal, mining, nature, oil, petroleum, pipe, plant, pollution, power, production, refinery, sky, smog, smoke, smokestack, station, steam, technology, tower, toxic, tube, warming,