Ключевые слова: achimney, achimneystack, air, architecture, background, blue, brick, building, chimney, chimneysmoke, chimneystack, chimneywithsmoke, closeupofchimney, cloud, coal, cold, construction, countryside, day, dioxide, ecology, energy, environment, factory, fluepipes, global, heating, home, homechimney, house, housechimney, landscape, nature, nobody, norway, old, outside, pipe, pollution, power, roof, rooftop, sky, smog, smoke, smokebackground, smokecircle, snow, white, winter,