Ключевые слова: atmosphere, carbon, chemical, chemistry, chimney, climate, cloud, co2, coal, concepts, damage, dioxide, dirty, dramatic, ecological, ecology, electricity, emission, emissions, energy, environment, environmental, exhaust, factory, fossil, fuel, fumes, gases, global, greenhouse, impact, industrial, industry, manufacturing, particles, plant, pollution, power, problem, production, science, sky, smog, smoke, spray, steam, technology, toxic, vapor, warming,