Linda Geiser earned degrees in Soil Science and Plant Nutrition (MS 1989) and Plant Physiology (PhD 1991) from the University of California, Davis. As an ecologist for the US Forest Service Air Resource Management Program, she has studied lichen response to air pollution and climate since 1989. She is an author of over 60 related scientific articles and books including Macrolichens of the Pacific Northwest (2009). She was the lead author for the ecological effects chapter of the Landers et al. (2008) Western Airborne Contaminants Assessment Project report sponsored by the National Park Service. She is an active member of the International Association for Lichenology, the American Bryological and Lichenological Society, and Northwest Lichenologists. Her other interests include promoting climate change awareness and action, hiking, yoga, swimming, and playing cello for the Corvallis, Oregon community theatre.