Ключевые слова: against, air, atmosphere, background, blue, chemical, chimney, climate, cloud, cloudscape, cloudy, co2, color, damage, danger, dioxide, dirty, ecology, energy, environment, environmental, factory, fluffy, fog, fumes, gas, global, industrial, industry, manufacturing, nature, outdoor, ozone, pipe, plant, pollution, power, sky, smog, smoke, station, steam, technology, tower, toxic, view, warming, weather, white,