The hon. Gentleman makes a very good point. The House could of course lead by having bottled tap water instead of mineral water. As a farmer and previously a dairy farmer, I can say that dairy farmers often joke that they would be better off if, instead of milking cows, they could find a spring on their farm and bottle the water, because more money can be made from bottling water than from keeping cows and producing milk. It is fair enough if people really want mineral water; perhaps some people need mineral water for health or other reasons, but we certainly do not need the amount that we consume and we do not need to have it in plastic bottles.
Of course, if we are going to have plastic bottles, let us ensure that they are properly recyclable. Some of the big companies—Pepsi and Coca-Cola—are looking at reverse vending machines. That is where someone takes a plastic bottle, puts it back through the vending machine, gets a deposit and another bottle can be made from that plastic. Of course, only 70% of that plastic can be used and it can only be recycled about twice. With everything in this world that we look at, we find, when we drill down, that it is not quite as recyclable and reusable as we believed it to be.