Ключевые слова: big, blue, building, business, chimney, climate, cloud, coal, condensation, construction, cooling, danger, day, ecology, electric, electricity, energy, environment, factory, fuel, gas, global, heat, huge, industrial, industry, infrastructure, large, modern, nuclear, pipe, plant, pollute, pollution, power, production, sky, smog, smoke, stack, station, steam, summer, technology, thermal, tower, toxic, vapor, white,