Karen D. Holl is a professor of environmental studies at the University of California, Santa Cruz, where she has taught ecological restoration for over 20 years. She conducts research in the rainforests of Latin America and the chaparral, grassland, and riparian systems in California. She is an Aldo Leopold Leadership Fellow, a Fellow of the California Academy of Sciences, and a co-winner of the Theodore Sperry Award of the Society for Ecological Restoration.