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What Connects Bones, Bird Poop, and Toxic Green Slime? Hint: Without It, Half of Us Wouldn't Be Alive Today

Gastropod

CHAPTER

The Importance of Phosphorus in Agriculture

In the past, farmers had easy access to fertilizer. They didn't think there was any need to limit it. Dan says each cow can produce something like 18 times as much poo as a human. These new mega farms are actually producing the same amount of shit as a city of several million people.

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