Ключевые слова: acid, air, atmosphere, background, building, business, chemical, chimney, climate, cloud, co2, coal, construction, danger, dioxide, disaster, ecology, emissions, energy, environment, exhaust, factory, fog, fumes, gas, generation, global, health, industrial, industry, manufacturing, metallurgical, nature, pipe, plant, pollute, pollution, power, problem, sky, smog, smoke, stack, steam, technology, thermal, toxic, urban, warming, white,