Ключевые слова: air, atmosphere, atomic, blue, building, business, carbon, chimney, city, climate, clogging, company, contamination, corporation, dirty, energy, environment, environmental, factory, fuel, gas, global, industrial, industry, nature, nobody, outdoors, pipe, plant, pollute, pollution, power, reek, russia, sky, smoke, station, steam, technical, technology, town, tube, unfriendly, unhealthy, urban, vapor, venture, warming, without, yaroslavl,