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Climate Change

That is exactly my point. When we see a consensus, we should be wary of it. That one turned out to be completely wrong. Another from the list of those that we have had to address in the House in the past might be appeasement in the 1930s. A better one, which is more closely related to that cited by my hon. Friend, would be post-war Keynesian economics as a means of controlling inflation. That idea has now been overturned and rejected by the Labour and Conservative parties, but it was the prevailing consensus. To challenge that consensus in the economic community took a great deal of bravery in the 1950s and ’60s. It was down to the bravery of a small number of economists, mainly the Chicago school—whether we agree with everything that it said is another matter—that there was a breakthrough to enable us to re-examine it.