Ключевые слова: alternative, bin, bio, car, clean, conservation, earth, eco, ecology, electric, energy, environment, environmental, fabric, factory, forest, friendly, fuel, garbage, global, globe, green, hand, icon, leaf, lightbulb, line, nature, organic, outline, people, planet, plant, plastic, pollution, power, recycle, reduce, safe, set, symbol, tap, technology, tree, truck, waste, water, wind, world,