The Big Necessity teaches you everything you need to know about feces. Explore how sanitation works, the damage it causes when it's not done properly, and how we can improve it worldwide.

We all do it every day. But for some reason, nobody wants to talk about it.

Unless you're the parent of a potty-training toddler, you probably don't even think about poop that much.

Because we like to avoid thinking about it, we ignore the problems that come with all seven billion of us sharing this world and doing our daily business.

Substandard sanitation is one of the leading causes of disease and death worldwide; 2.6 billion people worldwide don't even have access to a toilet.

In The Big Necessity, author Rose George tackles feces, the huge issues it causes worldwide, and what we can do about it.