I would ask the hon. Member to give a fuller explanation of his Amendment. It seems to lay upon the Government the obligation to see that there must be a green belt round every town of a certain population. Is that to involve the pulling down of houses on a vast scale? It would be quite impossible in a great area of the Black Country to carry out any policy of this kind. It would be very desirable, but there are no green belts now in the neighbourhood of many large towns. At the same time this Amendment calls upon the Minister to preserve such belts. I really cannot understand how it would work out. Does the hon. Gentleman mean that this should be done in so far as it may be practicable? The words of his Amendment say that it must be done everywhere.