Yes, I believe that is a fair assessment, in terms of some of the improvements that have been made.
We publish our environmental indicators so it's there for all to see. Having said that, I think we have the prospect of even more improvements. On NOx and SOx air quality, in October we reached agreement with the provinces on an air quality management system for Canada, which I think was a major accomplishment in trying to bring all the players together to get an agreement on how we can improve air quality in Canada.
We are now working together to try to implement that. I'm fully expecting that's going to generate even further increases. It's an example of the work we do at Environment Canada day-to-day.