That means that CO2 emissions – the largest component of the greenhouse-gas emissions that cause global warming – will begin falling, too, enabling China to fulfill its pledge, made last November as part of a landmark climate agreement with the United States, that emissions would peak around 2030. In fact, if China’s leaders act boldly, the peak could be reached even sooner, in the early 2020s.
这意味着二氧化碳排放量——导致全球变暖的温室气体排放的最大成分——也将开始下降，使中国兑现其在去年11月与美国达成的标志性气候协议中所做的排放量在2030年左右达到最高峰的承诺。事实上，如果中国领导人采取果断行动，排放高峰还会来的更快一些，在21世纪20年代初就能达到。