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    October 24

    2009哥本哈根共识

    以暧昧语态讨论全球变暖或许是Levitt和Dubner的不对,但他们的解决方案听起来确实比减排要有意思些。比照哥本哈根大会上六位专家(三位是诺贝尔奖得主)的看法,就会发现两位作者提倡的正是第一条和第三条,而各种二氧化碳减排的方法被排在了最后,甚至是碳减排这一组的倒数。当然,这或许只是纯经济学的成本收益分析思维,我总感觉他们可能还不足够重视各种方法带来的其他可能负效应。譬如,谁能给我解释一下所谓的平流层注入二氧化硫,难道二氧化硫不会跑到对流层,被氧化后引起更多的酸雨吗?

    从高到低排列应对全球变暖最有效的方法,列表如下:
    1. 气候工程——海洋云层增白
    2. 科技——以科技为指导的政策反应
    3. 气候工程——平流层注入悬浮颗粒
    4. 科技——二氧化碳储存研究
    5. 改造——改造计划
    6. 气候工程——气体捕捉研究
    7. 科技补贴——科技补贴
    8. 林业——扩张和保护森林
    9. 碳黑减排——减少发展中国家的火炉使用
    10. 甲烷减排——投资甲烷减排
    11. 二氧化碳减排——OECD二氧化碳税
    12. 二氧化碳减排——0.5美元全球二氧化碳税
    13. 二氧化碳减排——3美元全球二氧化碳税
    14. 二氧化碳减排——68美元全球二氧化碳税

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