Climate Change Bill [HL]

The Minister has now said on two occasions that the Bill is before this House with the agreement of all the devolved Administrations, which is fine. The question I wish to be clear about is what happens if we amend it. I note that the Minister himself has amendments tabled. It seems that we are then approving the Bill outwith that original agreement. Is there a procedure by which that is dealt with? He may have covered this point in his last answer, but I am not absolutely certain whether he has.