Ключевые слова: air, air pollution, blue, chimney, clean, clear sky, climate, color image, condensation, contemporary, day, directly below, environment, factory, fumes, high up, horizontal, industry, industry chimney, new, no people, outdoors, personal perspective, photography, pipe, pollution, sky, smoke, smoke stack, sparse, steel, sunlight, tall, the bigger picture, two objects, unusual angle,