The Big Necessity: Adventures in the World of Human Waste


For the category Popular Science of the 2022 NONFICTION READER CHALLENGE, I chose The Big Necessity: Adventures in the World of Human Waste, by Rose George, 2008.

The book focuses on practices of sanitation (i.e., toilets) in the world (or lack of them) and why this impacts everyone on the planet, as well as the planet itself.

This seems like an unusual topic (one of the reasons it interested me), but also one that’s important yet rarely talked about. George refers to this many times throughout the book (“… we refuse to notice that we still don’t know how to properly deal with something that we all produce, up to several times a day, many million years after we first started producing it.”).

However, some of the data she presents indicates why this should change. Lack of sanitation – or poor sanitation – affects almost everything about our lives, even if we live in a society that has effective sanitation. She starts with the statistic that 2.6 billion people don’t have sanitation. And then qualifies it:

“I don’t mean that they have no toilet in their house and must use a public one with queues and fees. Or that they have an outhouse, or a rickety shack that empties into a filthy drain or pigsty. All that counts as sanitation, though not a safe variety. … Four in ten people have no access to any latrine, toilet, bucket or box. Nothing. Instead, they defecate by train tracks and in forests. They do it in plastic bags and fling them through the air in narrow slum alleyways. If they are women, they get up at 4 a.m. to be able to do their business under cover of darkness for reasons of modesty, risking rape and snakebites. Four in ten people live in situations where they are surrounded by human excrement, because it is in the bushes outside the village, or in their city yards, left by children outside the back door. It is tramped back in on their feet, carried on fingers onto clothes, food and drinking water. The disease toll of this is stunning.”

It’s interesting that George refers to ‘famous’ people who support access to clean water in the world, but never mention sanitation or the lack of toilets even though that’s the main reason that the water is contaminated. Again, as George writes, no one likes to talk about toilets or what they’re used for – even though every human being needs to defecate.

I was surprised to learn that contaminated water is not only a problem in third-world countries. George relates the situation in Galway, Ireland in 2007, when the city’s drinking water was contaminated with a parasite called cryptosporidium, a disease-causing protozoa that can travel in feces. Or that until 2005, Milan, Italy was still discharging raw sewage into the river Lambro. And Brussels, Belgium, started to build a treatment plant for its sewage only in 2003.

While it’s true that 90% of the third-world’s sewage ends up untreated is oceans, rivers and lakes, the situation is not much better in developed countries. George writes that “Sanitation in the Western world is built with pipes but on presumption. Despite the technology, the engineers and the ingenuity of modern sanitary systems, despite the shine of progress and flush toilets, even the richest, best-equipped humans still don’t know what to do with sewage except move it somewhere else and hope no-one notices when it is poured untreated into drinking-water sources. And they don’t.”

It follows that there is also a lot of information about the types of diseases caused by this situation, and the numbers of deaths in the world related to such a lack of sanitation.

Some of the detail in the chapters on sewer workers in various parts of the world felt too excessive for me and I started to skim over parts of it. But more interesting for me were the stories about people who are trying to make a difference in their parts of the world and all the obstacles they face.

Rose George writes in an accessible manner, with personal input but without being flippant or trying to be humorous. She has done extensive research, has travelled throughout the world to observe and conduct interviews and has written a book that is both extremely informative and rather depressing.



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