Certainly, and I think the economists have long quoted that it's the most effective and efficient way to incent behavioural changes on carbon emissions, on GHG emissions. We obviously see that.
Our focus has been to make sure that a lot of the revenue that comes from a carbon pricing mechanism is focused and directs innovation back into the technologies that will drive those changes today and tomorrow for our industry, and other industries as well. We think that link to technology and innovation in a directed manner is the critical part of it, not so much the mechanism. Whether it's a carbon price or it's a regulatory mechanism, as long as you direct it at technology and innovation, you will get some success.