Climate Change Bill [HL]

I wonder if the Minister could clarify something for me. If for any reason one of the devolved Administrations gets into difficulty one year with being able to reduce its carbon, for example, or work within its limitations, is something built into the Bill that I have missed which makes allowances for that? Scotland could have an emergency for one year and not then be able to fulfil its obligation to the original agreement. Clearly this does not allow for that. It may be that elsewhere in the Bill exceptions have been made for that. I would be grateful for a bit of clarification.