Of course there has been an evolution, most notably as a result of the science, the work of the International Panel on Climate Change. I think the level of intensity and of urgency has increased.
A number of elements of the agreement, the protocol, are in a sense coming due. For example, the review under article 9 of the protocol is an issue that we faced this time for the first time.
I think the other element of the evolution of this process has been the unprecedented expansion and emergence and growth of the large developing economies and the change in the distribution of emission output, with a greater and greater recognition that in order to be successful over the long term we need to find a successful and appropriate means of the emerging economies participating in the future agreements. It seemed to many of us, not only at the COP in Bali, but in other international meetings, that the emerging economies themselves recognize that there will need to be an appropriate level of engagement.
I think that will be one of the key elements of the negotiations that will follow in the next couple of years. Frankly, I think it will be one of the most difficult issues to grapple with. But I think that while that has been some time in coming, my impression is that it was at this particular COP that the essential engagement of the emerging economies was most pointed at this meeting. I couldn't say if that is something that is absolutely new from the position of previous governments of Canada at the COPs, but it certainly is one that is growing in its focus.