Cormorants on a Guano Island

Are We Entering a New Golden Age of Guano?

A history of civilization could be written in fertilizers. And the history of guano—bird poop—tells us a lot about slavery, imperialism, and U.S. expansion.

The Road to Capital in the Twenty-First Century

Thomas Piketty’s Capital in the Twenty-First Century hit the number one spot on the New York Times nonfiction ...