This is a great podcast about how Victorian London built a huge sewer system to deal with the vast amount of human waste generated by one of the biggest cities

This is a great podcast about how Victorian London built a huge sewer system to deal with the vast amount of human waste generated by one of the biggest cities in the world: https://www.bbc.co.uk/programmes/m001gjcm https://www.bbc.co.uk/programmes/m001gjcm I was reminded of it by the mention of people who collected the waste from cess pits, which is also in the podcast - it was transported outside the city and used for fertiliser.