Ключевые слова: alternative, building, city, cityscape, cloud, earth, eco, ecological, ecology, economy, electric, electrical, electricity, energy, engine, environment, environmental, flat, friendly, generation, globe, grass, green, hand, home, house, icon, industry, lamp, landscape, life, lifestyle, light, living, natural, nature, power, protection, recycle, solar, solar panels, source, station, sun, supply, sustainable, technology, wind, windmill,