Ключевые слова: alternative, bio, business, climate, concept, design, eco, ecological, ecology, energy, environment, environmental, flat, food, friendly, fuel, green, icon, illustration, industrial, industry, isolated, label, logo, natural, nature, organic, plant, pollution, power, process, product, production, protect, recycle, save, seal, set, sign, store, sustainable, symbol, technology, wind, wooden,