Great. On the environmental question, I wonder if our other witnesses might like to speak to how Canada might both structure some of its own public infrastructure projects to support certain environmental outcomes, and also how we might use our willingness to do that in negotiations with the United States government in trying to ensure that Canadian firms might be able to access American public projects along these environmental lines and kind of create a reciprocal relationship there without violating any of the current strictures around preferential procurement.
Mr. Hughes, I wonder if we might start with you, and then I'll give my remaining time to Professor Dufour.