Ключевые слова: air, ash, atmosphere, blue, building, carbon, chimney, climate, cloud, contamination, cool, danger, dense, dioxide, dust, ecology, emissions, energy, environment, environmental, factory, fuel, gas, global, globalwarming, gray, greenhouse, grey, industrial, industry, methane, nature, plant, pollution, power, produce, sky, smog, smoke, stack, steam, toxic, vertical, warming, weather, white, winter,