Ключевые слова: air, atmosphere, building, chemical, chimney, climate, concept, contamination, damage, direct, dirty, ecology, energy, environment, environmental, evening, factory, fumes, gas, generation, global, greenhouse, high, industrial, industry, manufacturing, morning, nature, nuclear, ozone, pink, pipe, plant, pollution, power, refinery, sky, smog, smoke, smokestack, station, steam, sunrise, sunset, tall, technology, three, tower, toxic, tube,