Ключевые слова: atmosphere, blue, burner, chemical, chimney, clean, climate, cloud, coal, dioxide, dirty, ecology, emission, energy, environment, environmental, exhaust, factory, fog, fuel, fumes, gas, gasoline, global, iceland, industrial, industry, manufacturing, oil, petroleum, pipe, plant, pollution, power, production, refinery, sky, smog, smoke, smokestack, stack, station, steam, technology, tower, toxic, vapor, warming, water, white,