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Climate Change Bill [HL]

My Lords, I would like to intervene on my noble friend again on the word ““method””. They may well choose a method which is disputed by the Government. My noble friend says that there are international norms in the methods that might be used. The facts are that there are other areas. Let us take the issue of the golden rule. We have our interpretation which we believe is absolutely correct on how the golden rule method of calculating works in finance. Others have another interpretation. I am worried that an argument may develop about the way in which the statistics have been drawn up—the kind of argument that might focus on political parties arguing over interpretation.