Ключевые слова: air, atmosphere, bad, carbon, chemical, chemistry, chimney, cityscape, climate, coal, contamination, damage, dioxide, dirty, ecology, electricity, emission, energy, environment, environmental, europe, exhaust, factory, fuel, fume, funnel, gas, generator, global, heavy, industrial, manufacturing, metallurgy, pipe, plant, pollution, power, production, smog, smoke, smokestack, snow, station, steam, technology, tower, toxic, vapour, warming, winter,