I respect your question, but it's getting dangerously close to my non-policy and non-regulatory position. What I would say is this. The companies have a priori defined four key areas: water, land, tailings, and greenhouse gases. From a purely technical perspective, those are the areas. They're definitely intertwined.
Speaking as a citizen of Canada, I would say that most of the international discourse, of course, is around greenhouse gases, and I'm happy to say that's one of our four priority areas.