I can't speak for how the government wants to achieve its aims. All I can say is that if the government comes to us and says there is a public priority and that priority is to reduce greenhouse gas emissions, we can look at our plants and our mines and we can say “These are the constraints we're operating under right now. This is what we could do in terms of the capital stock turnover that we have, in terms of revamping that, and in terms of what technological change may be available. We don't have a lot.”
We also have to look at what we can do in terms of remaining competitive. Right now we face tremendously high natural gas costs, for example, which are critical to our industry. And then we can say this is what we can do.