中国亟需澄清碳排放上限
中国要想在全国范围内开展碳排放交易就必须在地区试点的基础上加以完善，弥补其中的不足，例如，对上限制定办法、污染企业排放配额分配方案等问题进行澄清。
China national carbon scheme will need clarity on cap
Nationwide carbon trading in China will have to apply some of the missing elements of regional pilot programmes, such as greater clarity on how caps are fixed and on the allocation of allowances
