Ключевые слова: alternative, background, carbon, care, climate, co2, day, earth, eco, ecological, ecology, ecosystem, electrical, electricity, elements, emission, energy, environment, factory, footprint, forest, garbage, garish, generation, geometrical, global, globe, green, icon, leaf, line, nature, nuclear, pattern, pictogram, planet, pollution, production, protection, recycle, recycling, save, set, sign, technology, tiles, tree, warming, water,