Ключевые слова: air, atmosphere, blue, building, chemical, chimney, climate, coal, construction, cooling, danger, dioxide, ecology, electricity, energy, environment, environmental, exhaust, factory, fuel, fumes, gas, generation, global, heat, high, industrial, landscape, manufacturing, nature, nuclear, pipe, plant, pollution, power, production, refinery, sky, smog, smoke, smokestack, stack, station, steam, technology, tower, toxic, vapor, warming, water,