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The Devil's Element

The Devil’s Element

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DeLuca Forum

Presented in partnership with the Wisconsin Science Festival and Wisconsin Public Radio.

The New York Times best-selling author on the source of great bounty—and now great peril—all over the world.

Phosphorus has played a critical role in some of the most lethal substances on earth: firebombs, rat poison, nerve gas. But it’s also the key component of one of the most vital: fertilizer, which has sustained life for billions of people. In this major work of explanatory science and environmental journalism, Pulitzer Prize finalist Dan Egan investigates the past, present, and future of what has been called “the oil of our time.”

The story of phosphorus spans the globe and vast tracts of human history. First discovered in a seventeenth-century alchemy lab in Hamburg, it soon became a highly sought-after resource. The race to mine phosphorus took people from the battlefields of Waterloo, which were looted for the bones of fallen soldiers, to the fabled guano islands off Peru, the Bone Valley of Florida, and the sand dunes of the Western Sahara. Over the past century, phosphorus has made farming vastly more productive, feeding the enormous increase in the human population. Yet, as Egan harrowingly reports, our over-reliance on this vital crop nutrient is today causing toxic algae blooms and “dead zones” in waterways from the coasts of Florida to the Mississippi River basin to the Great Lakes and beyond. Egan also explores the alarming reality that diminishing access to phosphorus poses a threat to the food system worldwide—which risks rising conflict and even war.

With The Devil’s Element, Egan has written an essential and eye-opening account that urges us to pay attention to one of the most perilous but little-known environmental issues of our time.

Dan will be in conversation with Dean Knetter, executive producer of Central Time, a local Wisconsin Public Radio show.

Dan Egan

Dan Egan

Dan Egan is the Brico Fund Journalist in Residence at the University of Wisconsin-Milwaukee’s Center for Water Policy, a two-time Pulitzer Prize finalist, and the author of the New York Times bestseller The Death and Life of The Great Lakes. From 2002 to 2021, he covered the Great Lakes as a reporter at the Milwaukee Journal Sentinel. He is the winner of the Los Angeles Times Book Prize; National Academies of Sciences, Engineering, and Medicine Communication Award; Alfred I. duPont–Columbia University Award; AAAS Kavli Science Journalism Award; and J. Anthony Lukas Work-in-Progress Award. Dan lives in Milwaukee, Wisconsin, with his wife and children.

Recent Book
The Devil's Element

Dean Knetter

Dean Knetter photo

Dean Knetter is the Executive Producer of Wisconsin Public Radio’s afternoon program Central Time. He’s been a part of bringing many conversations on water quality, agriculture, and phosphorous to the air. In his free time, he enjoys hiking the Ice Age Trail and staying current on the best cheeses in the state.