Thank you for the question.
First, just to underscore and echo your comments, what I think is important--and you know, this has been a goal of environmental policy now for 25 years--is that it's sending the right pricing signals to encourage Canadians to adjust their behaviour in favour of more sustainable, environmentally sound practices. I think this is an example. Also, I think behavioural change, especially for climate change, is a long-haul issue. This is not going to be done in a year. This is a long, significant challenge to every country in the world.
Specifically on your question, our understanding is that while the target of reduction in greenhouse gas emissions has changed significantly, the financial target that has been put forward, the $650 million, remains the same. That's why the cost has gone up exponentially between 220,000 tonnes of reduction to 35,000 tonnes. If the cost remains the same, the cost per tonne actually increases.