Focusing on steps such as these would go a long way toward attaining the often-discussed goal of halving global carbon emissions by mid-century. But reaching an accord that sets binding ceilings for what each country will be allowed to emit is not an option in Copenhagen.
即便对上述举措的关注可能要花费相当长的时间，才能达到人们经常挂在嘴边的那个在本世纪中期实现全球碳排放减半的目标。但哥本哈根会议的选择不应该是达成一个明确规定各个国家排放限额的条约，因为达成这一条约的基本共识根本就不存在。