Perhaps I could continue our long-standing discussion with the noble Viscount outside the Chamber, to avoid the Committee having to listen to us going through that. The important point is that the principles helped us get a framework for thinking about the issues. That was very important at a time when that meta-analysis was not available.
Another example is our current position on the common agricultural policy. It was introduced before some of these environmental principles were refined and used in European legislation. As a result, we are now in the ridiculous position where the polluter pays principle would have helped us, as taxpayers and as water company customers and payers, avoid paying farmers twice. We are paying water companies to pay farmers to stop doing something that, as taxpayers, we are paying farmers to do. The polluter pays principle, had it existed when the common agricultural policy was first set in place, would have been a hugely valuable way of preventing that very wasteful situation.