With fertilizers that supply phosphorus–what Asimov called “life’s bottleneck”– people broke the circle of life. Dan Egan’s new book The Devil’s Element traces the history of this essential element from curiosity to crop miracle. Egan documents the mayhem unleashed by a flood of phosphorus, from the Great Lakes to the Gulf of Mexico and discusses how people can act to stop phosphorus-fueled blooms of algae that are closing beaches, killing animals and sickening people.