My second question is for Pamela.
I just wonder if you could elaborate a little bit more on what's been done in terms of reducing GHGs in carbon sequestration and capture for the coal operations in Saskatchewan.
This spring I had the opportunity to go out to the Western Governors' Association conference. That's a group of 10 governors who are collectively spending a tremendous amount of time and effort to try to reduce coal emissions. I'm just wondering if you collaborate with them, as an industry, or what's being done to try to reduce that carbon footprint.