Ключевые слова: air, architecture, atmosphere, background, blue, building, business, chemical, chimney, city, cityscape, climate, cloud, construction, contamination, ecology, electric, electricity, energy, environment, environmental, factory, gas, global, industrial, industry, landscape, modern, nature, pipe, plant, pollute, pollution, power, river, sky, skyline, skyscraper, smog, smoke, station, steam, sunset, technology, tower, toxic, urban, view, warming, water,