You can grow cotton in places where land and labor are cheap. But most of the cotton in the Planet Money T-shirts was grown in the U.S. In fact, the U.S. exports more cotton than any country in the world. Here are three reasons why.

1. Effiency in cotton
There is just so much cotton. Some of the numer A cotton farmer shared some of the numbers behind this operation. The U.S. has perfected cotton by ...

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