After first disputing that there was scientific evidence of the problem, the largest polluter in the world, the US, is now simply refusing to do anything about it (other than preaching voluntary restraint—of which there is little evidence, at least in America). The international community has yet to figure out what to do with an aberrant member who fails to live up to its responsibilities as a global citizen.
但我们还远未成为一个地球村。在首先提出全球变暖问题缺乏科学依据后，全球最大的污染国美国就是不愿采取任何措施（除了鼓吹自愿限制制没有证据表明自愿限制是否可行，至少在美国的确如此）。对付这样未能承担起地球公民义务的不正常的成员，国际社会还没有拿出可行的办法。