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Urban Planet: Sewage Systems - Part Two
The best of the worlds sewers, with a focus on Calgary in Canada. What is it which makes it the most state-of-the-art sewage system in the world? How an effective sewage system can reduce the difficulties of large city growth.
Presenter: Richard Hollingham
Βι¶ΉΤΌΕΔ World Service Archive
This programme was restored as part of the World Service archive project
