Timothy Johnson is a Ph.D. candidate in History at the University of Georgia whose research focuses on the broad intersections between environmental history and business history. His dissertation “Growth Industry: The Political Economy of Fertilizer in America, 1865-1947,” examines how capital and politics “rewired” agricultural production to coalesce state power between the collapse of slavery and World War II. His research has received funding from the Social Science Research Council, the Chemical Heritage Foundation, and the Harvard History Project.