I'm aware that there are a number of studies going on across Canada and North America. We're actually supporting one through the University of Calgary that is directly related to greenhouse gas emissions with respect to hydraulic fracturing. That study is just getting under way.
I support your comments with respect to renewables, but I also am a realist, in the sense that we are not going to get to renewables without first meeting the demands of energy supply today, which is natural gas. There is a cost to get it out of the ground, without a doubt, but in the long term that's what we're going to have to go with eventually to get to renewables.