But climate policy in the wealthy world -- to the extent that such a thing exists -- is not based on precaution, but rather on cost-benefit analysis -- finding the course of action that economists believe will have the least impact on our GDP.
但发达国家的气候政策-- 如果有这样的政策存在的话-- 并不是基于预防的。 而是基于成本收益分析-- 找出那些经济学家们认为 对我们的GDP影响 最小的行动方式。