Thank you, Mr. Chair. No, I -- I mean there certainly is an impact in a contribution to the greenhouse gas total from all of this infrastructure that's on our landscape; however, I mean, like I said earlier, you know, the options of to go to other technologies are somewhat limited and, yes, much of the infrastructure that is on the capital plan is replacing existing infrastructure so it's not additions to the fleet but part of the replacement cycle. Thank you, Mr. Chair.