Ключевые слова: air, architecture, atmosphere, blue, building, chemical, chimney, clouds, construction, contamination, cooling, dirty, ecology, energy, environment, environmental, exhaust, factory, fuel, gas, global, grunge, heat, industrial, industry, manufacturing, petrochemical, petroleum, pipe, plant, polluting, pollution, power, production, sky, smog, smoke, smokestack, smokestacks, stack, station, steam, structure, technology, tower, toxic, vapor, warming, waste, white,