Ключевые слова: air, atmosphere, blue, chemical, chemistry, chimney, climate, contamination, dioxide, ecology, electricity, emission, energy, engineering, environment, environmental, equipment, factory, fuel, gas, generation, global, heat, heavy, industrial, industry, manufacture, manufacturing, nature, oxygen, petroleum, pipe, poisoning, pollution, refinery, resource, scenery, sky, smog, smoke, tall, technologic, technology, tower, toxic, tube, warming, waste,