Ключевые слова: alternative, business, clean, concept, conservation, creative, earth, eco, ecologic, ecological, ecology, electric, electricity, energy, environment, environmental, equipment, friendly, generation, global, globe, grass, green, growth, idea, industry, innovation, isolated, light, map, natural, nature, planet, plant, power, protection, renewable, resource, save, solar, solution, source, sustainability, sustainable, symbol, technology, warming, white, world,