Ключевые слова: abstract, alternative, awareness, blue, butterfly, carbon, clean, co2, concept, conservation, consumption, creative, day, design, earth, eco, ecological, ecology, environment, foot, footprint, fresh, friendly, future, grass, green, idea, innovation, natural, nature, neutrality, nonpolluting, organic, plant, pollution, renewable, renewal, resource, resources, reusable, sign, silhouette, sustain, sustainability, sustainable, symbol, waste, zero, zero emissions,