My Lords, on his first point, the noble Lord is wrong to say that the Chancellor was trying to squash this: he was merely pointing out potential costs. As was made clear in the Statement, the climate change committee estimates that the annual cost of delivering a net zero target is within the same range as the 80% target was when it was set in 2008. Our own assessment of costs is within that range. It is right that the Chancellor takes an interest in the likely costs—after all, he is responsible for these measures.
The noble Lord is right to point to the importance of what we do about homes. We have an appropriate target and have announced what we want to do about energy efficiency by 2025. We will stick to that date, which will allow us to meet our target.