Ключевые слова: air, atmosphere, attention, checkpoint, chemical, chimney, chimneys, contamination, crisis, dioxide, dirty, dispersal, ecology, electricity, emission, emissions, environment, environmental, factory, farreaching, fume, gas, global, hazards, horizontal, impact, industrial, looming, manufacturing, metal, metallurgical, natural, noxious, pipe, plant, pollution, power, sky, smog, smoke, steam, sustainable, technology, tower, toxic, toxins, urban, urgent, veil, warming,