Ключевые слова: air, architecture, atmosphere, blue, business, chemical, chimney, climate, cloud, co2, coal, construction, contamination, danger, dioxide, ecology, energy, environment, environmental, exhaust, factory, fuel, fume, gas, global, heat, industrial, industry, manufacturing, pipe, plant, pollute, pollution, power, production, refinery, sky, smog, smoke, smokestack, stack, steam, structure, technology, tower, toxic, vapor, warming, waste, white,