Ключевые слова: air, architecture, atmosphere, background, blue, building, business, chemical, chimney, city, climate, cloud, coal, construction, contamination, damage, dioxide, dirty, drone, ecology, emission, energy, environment, environmental, factory, fog, fuel, fumes, gas, global, heavy, industrial, landscape, manufacturing, oil, pipe, plant, pollution, power, production, refinery, sky, smog, smoke, station, steam, technology, tower, toxic, warming,