Advocates of the EU’s policy often argue that we should pursue such policies nonetheless, because there is a risk that global warming will be much more severe than currently expected. But, though this argument is valid in principle, economic models show that this risk has only a moderate effect on the best policy.
欧盟政策的倡导者往往辩解无论如何都应该执行这样的政策，因为全球变暖的风险也许比现在估计的严重得多。虽然这种说法原则上成立，但经济模型显示最好的政策对缓和危险也没有多大效果。不仅如此，过去10-17年温度停止上升已经使结果不太可能比预期更差。