Ключевые слова: acid, air, atmosphere, breathe, changing, chimney, climate, cloud, coal, damage, deleterious, dirty, ecological, ecologically, ecology, emissions, factory, fuel, fumes, global, growth, harmful, health, industrial, industry, intoxication, isolated, noxious, ozone, pipe, poison, poisoning, pollution, power, precipitation, sky, smog, smoke, stack, station, steam, substance, tower, warming, white,