Climate Change and SustainableEnergy Bill

May I join the many hon. Members who have spoken in the debate in expressing my condolences to my hon. Friend the Member for Edinburgh, North and Leith (Mark Lazarowicz) on his family loss? It is unfortunate that he is absent from the Chamber today as a result, and that he has not been present to see the Bill through to its Third Reading. I congratulate him on his tenacity in pushing it through to this point, and it now falls to me to speak to it in his place, which I do with great pleasure. The Bill has probably been scrutinised more closely than any other private Member’s Bill in recent years—