Thank you very much, Mr. Chair.
My apologies to the chair and committee, but it was unavoidable. I'm sure my colleagues all understand how that happens, but I am glad to be here, and I offer my apologies to our witnesses. I knew you were in great hands with the rest of this committee and they ask all kinds of interesting questions.
Dr. Walker, can you elaborate a bit more on decarbonizing, because it's certainly an issue that we're all very concerned about?