Climate Change

I am grateful to the hon. Gentleman for giving way. It is unfortunate and puerile to keep on making that sort of attack. He knows full well that the Bill stipulates that the target is at least 60 per cent.; that it is for CO2, not greenhouse gases; and that when it translates into parts per million of greenhouse gas emissions, it is substantially higher than 60 per cent. He is also aware that according to part 1 of the Bill, it is open to the Secretary of State to amend the target in the light of science, as scientific knowledge progresses. I hope that that will put an end to this—