I think considerable. I think we've always underestimated the contribution of Canadian society to greenhouse gas emissions. I think there is a lot of political sensitivity that has made it difficult, but I don't think there's any doubt.
Just look at oil sands development. On one hand, people put that as an isolated issue, but what is it being produced for? Well, 98% of it goes to road vehicle transportation in both Canada and the United States. What drives road vehicle transportation in Canada and the United States? I would submit, from an energy efficiency or climate change perspective, it's the rather disastrous policies on urban planning.