Ключевые слова: air, atmosphere, black, chemical, chimney, construction, contamination, damage, danger, dioxide, dirty, ecology, emissions, energy, environment, environmental, exhaust, factory, fire, fog, fuel, garbage, gas, global, heat, hot, industrial, industry, inhaling, manufacturing, nature, pipe, plant, poison, pollute, pollution, power, production, sky, smog, smoke, smokestack, sun, technology, tower, toxic, warming, waste,