Ключевые слова: alternative, architecture, biology, building, business, clean, conservation, construction, earth, eco, ecological, ecology, ecosystem, energy, environment, environmental, estate, fresh, friendly, garden, global, grass, green, home, house, housing, innovation, investment, lawn, leaf, model, nature, outdoor, plant, pollution, power, protection, real, recycle, renewable, residence, residential, resource, saving, service, small, spring, sustainable, technology, wooden,