I'm not an expert, obviously, in those sorts of things, but certainly our view, and the view of a number of provinces we're trying to work with who are looking at fuel issues, is that you can't look at fuel exclusively, that transportation emissions, ultimately, are based on—we use the description of a three-legged stool. Yes, you've got fuel carbon intensity, you've ultimately got vehicle efficiency, and then you've got driving habits and vehicle uses.
So you really do need to take a systematic approach that looks at all three of those legs of that stool if you're going to be serious about driving down transportation emissions.