The third installment of the IPCC report showed that strong climate policies would be more expensive than claimed as well – costing upwards of 4% of GDP in 2030, 6% in 2050, and 11% by 2100. And the real cost will likely be much higher, because these numbers assume smart policies, instantly enacted, with key technologies magically available.
第三期IPCC报告显示强硬的气候政策也比之前所说的更加昂贵——2030年将占GDP的4%，2050年6%，2100年11%。而真正的成本可能还会更高，因为以上数据都假定政策处置恰当且立即生效，同时还神奇地采用了关键技术。