Climate Change Bill [HL]

I must pursue this a wee bit further. I accept that if one of the devolved authorities fails for a particular reason to meet its target it is a United Kingdom responsibility to meet the overall target if at all possible. That does not alter the fact that there is then a devolved authority that, for want of a better word, is in dereliction at that time. The question is whether the devolved authority has to catch up on its target or does the United Kingdom—the other two devolved authorities plus England—continue carrying that authority and its deficit ad infinitum? Is there an arrangement by which the devolved authorities have overall responsibility within their targets to catch up their deficits if they find themselves in the unfortunate position of having such a thing?