Ключевые слова: air, atmosphere, burn, carbon, catastrophic, chemical, chimney, climate, clouds, coal, contamination, crisis, damage, destructive, dioxide, ecology, emission, energy, environment, environmental, exhaust, factory, fume, gas, global, greenhouse, harm, heat, impact, industrial, industry, kyoto, ozone, pipe, plant, poison, pollute, polluting, pollution, power, sky, smog, smoke, smokestack, steam, thread, toxic, vapor, warming, waste,