I appreciate that distinction, Professor, that Canada is somewhat unique.
This leads me to a question for you, Mr. Rainville. You spoke to emissions thresholds and to some disparity there. We've heard about other places and what the emissions thresholds are in different industries. There are differences. I'd like you to comment on the equity from industry to industry on that, and on what is fair. Then, maybe more importantly, how do these thresholds move? Will they change over time?
