Ключевые слова: air, auto, bird, board, building, car, carbon, caron, change, chemical, chimney, climate, damage, diesel, dioxide, ecology, economy, energy, environment, environmental, factory, fossil, fuel, fumes, gas, global, haze, industrial, industry, manufacturing, metal, oil, petrochemical, piping, plant, pollution, produce, production, progress, refine, refinery, smoke, stack, steel, structure, supply, tank, tower, toxic, warming,