Given that we use only 2 per cent of the rain that falls on these islands, one would not think it an insuperable job to secure our water supplies during the longest dry spells. If the Romans could do it with their technology, surely we can with ours.

Since communities in the ancient world could survive only if they had supplies of fresh water available in the first place — rivers, wells and cisterns — aqueducts were not strictly necessary for human survival.