LeeAnn Fishback is an environmental geochemist based in Churchill, Manitoba, where she is a Research Associate at the Churchill Northern Studies Centre. Her research focuses on freshwater lake and pond chemistry across Arctic and subarctic regions, examining how these systems respond to environmental change. Prior to joining Parks Canada in 2020, she spent 18 years in research management and as a research scientist at the Churchill Northern Studies Center. She holds a Ph.D. from the University of Western Ontario.

Dr. Fishback's work centers on understanding how climate change is altering northern systems, from small tundra ponds of the Hudson Bay Lowlands to permafrost and treeline environments. By tracking changes over time, she identifies how shifts in temperature, permafrost and hydrology are reshaping Arctic landscapes. Her research contributes to long-term environmental monitoring in the North, providing data that help the broader scientific community understand and manage the impacts of climate change on sensitive ecosystems.

In the field, she leads hands-on data collection in remote locations, working with research teams to sample across seasons. Early in her career, she spent months living on a glacier in the high Arctic, where record summer temperatures caused widespread surface melt—an experience that highlighted the pace and scale of change in northern environments. Through her work, she helps build a clearer picture of how Arctic systems are evolving, providing the long-term perspective needed to understand and respond to a changing climate.