Ключевые слова: alternative, bio, carbon, cartoon, clean, climate, co2, concept, conservation, dioxide, eco, ecological, ecology, ecosystem, electricity, emission, energy, environment, environmental, factory, fiber, friendly, global, green, greenhouse, industry, material, methanol, nature, organic, oxygen, planet, pollution, power, production, recycle, recycling, reduce, renewable, reuse, save, smoke, solution, substitute, sustainable, symbol, technology, transportation, waste,