I think it would be helpful to have a harmonized approach. But as we're witnessing, it would be extremely challenging to get our legislative processes moving in harmony. Short of that, if both countries adopted a cap-and-trade bill, or if both adopted regulations and we moved into the implementation stage, a lot could be done to advance toward harmonization.
Mr. Murrow has outlined some of the challenges, particularly in the area of price cap, making sure that both our countries have the same level of stringency for offsets. These are obstacles that would have to be worked through in both countries.