Ключевые слова: air, atmosphere, atmospheric, blue, burning, chemical, chimney, city, cityscape, climate, cloud, construction, cooling, ecology, emission, energy, environment, exhaust, factory, fuel, gases, global, industrial, industry, light, nature, oil, pipe, plant, pollution, polution, power, production, refinery, sky, smog, smogcity, smoke, smokeovercity, steam, sundown, sunlight, sunset, technology, toxic, urban, view, warming,