Ключевые слова: abstract, battery, bio, bulb, change, clean, climate, concept, conservation, design, earth, eco, ecological, ecology, ecosystem, electric, element, energy, environment, factory, footprint, global, globe, green, icon, icons, illustration, leaf, light, natural, nature, organic, planet, plant, pollution, power, recycle, recycling, set, sign, solar, symbol, tree, warming, wastewater, water, wind, world,