Ключевые слова: bergen, building, chemical, chimney, clouds, decay, eco, ecological, ecology, emission, energy, environment, environmental, factory, fall, fog, funnel, gas, global, harbor, heating, industrial, industry, landscape, large, levanger, manufacturing, marine, metal, mill, modern, natural, norway, oslo, outdoor, outdoors, paper, plant, pollution, power, production, pulp, refinery, sky, smog, stavanger, structure, technology, transport, transportation,