Antarctic Bill

Before my hon. Friend moves on to that other matter, I would like to put a point to him. There has been some discussion about the necessity of clause 5, which is at the heart of protecting this pristine environment. Times move on. I remember my grandfather telling me how he used to have snowball fights with asbestos fibre and think it was a good thing to do. Given that times move on, would not the cost-benefit analysis provide us with the ability to revisit clause 5 to ensure that we have the strongest possible protection for this pristine environment, to look at the effect of modern technologies and to update the provisions where it was felt necessary?