It is one of the issues that will have to be worked through however let me make the point and I think anyone would accept that if you set it up properly, not only will you get better environmental outcomes, you have a chance to create more wealth with the available resource.

But my point is that you design something in the end that precludes any unhealthy trading practices that are not going to serve your environmental or your economic objectives but now is not the time to do it.