A number of different regimes for reducing greenhouse gas have been discussed in Canada and throughout the world. Liberal and Conservative governments were looking at an emissions intensity system, and that's where we were at in terms of the proposed regulation in “Turning the Corner”. In Europe they've really gone more to cap and trade. The United States is pushing for cap and trade. I think Minister Prentice is now saying that Canada would like to align with the United States with a cap and trade system. Ontario is proposing a cap and trade system.
In the end, all these systems are designed to economically penalize companies and individuals who don't reduce their carbon footprint, and they're also designed in some way to reward people who reduce their carbon footprint.