%EC%A0%84%EA%B8%B0%EB%B0%94%EB%8B%A5%EB%82%9C%EB%B0%A9 ECO2 %EC%9E%85%EB%A0%A5 %EB%B0%A9%EB%B2%95%EC%9D%B4 %EA%B6%81%EA%B8%88%ED%95%A9%EB%8B%88%EB%8B%A4.