Every day, a human being produces one liter of urine and 200g of faeces. For humanity, in 2023, this is 3,000 billion liters and 600 billion kilos. Not everyone has access to the toilets. Studying the question more closely is even revealing of the inequalities of society or of the world. The French Book of the week is “Public Toilets”, an essay on urban conveniences, at the Presses de Sciences Po.
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