--of what Canada is proceeding on in terms of our stated commitment to reduce Canada's greenhouse gas emissions by 20% by 2020, from a 2006 level. That is Canada's domestic target. That is the target that we are taking forward to Copenhagen.
I'm quite happy to outline to you the basis upon which that target was arrived at, why we consider the target to be realistic, and the specific manner in which we intend to go about harmonizing with the United States to achieve it. One has to have regard to all of the sources of emissions in the Canadian economy.
The point I was making earlier is that in the United States, they have not yet decided if they are going to proceed with a cap and trade system, or, failing action by the U.S. Senate, whether the executive branch of their government will proceed with a regulatory approach. That is a critical distinction, because they are quite different ways of regulating the North American economy.