Char Miller is the W.M. Keck Professor of Environmental Analysis and History at Pomona College in Claremont, California. His most recent books include Ogallala: Water for a Dry Land (2018), San Antonio: A Tricentennial History (2018), Where There's Smoke: The Environmental Science, Public Policy, and Politics of Marijuana (2018), and The Nature of Hope: Grassroots Organizing, Environmental Justice, and Political Change (2019).