Ключевые слова: acid, air, atmosphere, blue, building, carbon, chemical, chimney, climate, cloud, damage, dioxide, dirty, ecology, emissions, energy, environment, environmental, exhaust, factory, fuel, fumes, gas, global, greenhouse, harmful, industrial, industry, manufacturing, outdoors, ozone, pipe, plant, pollution, power, refinery, sky, smog, smoke, smokestack, stack, station, steam, substance, technology, tower, toxic, warming, waste, white,