In Canada, the present government has been promoting the idea of intensity targets for quite a while. This goes to a point you were making, Dr. Peace, about how the two cap-and-trade systems would have to have the same degree of rigour.
Would it be possible to link two cap-and-trade systems, a U.S. and a Canadian cap-and-trade system, if one has fixed targets and the other has intensity targets, like the present government here in Canada is proposing?