The US delegation suggested a totally different scheme from the one being discussed. In the US scheme, the volume of emissions would be subject to permits or quotas, which could be traded in a market established for that purpose.
在会上美国代表团提出了一个与原讨论方案截然不同的新方案。在这套方案中，温室气体的排放量将由许可和配额所控制，而这些许可和配额则可以放到一个专门设立的市场上进行交易。