Lindsay Krall was a MacArthur Postdoctoral Fellow at CISAC, 2019-2020. She couples Earth science with energy policy to study the back-end of the nuclear fuel cycle, focusing on geologic repository development. She began this research in 2009, coincident with the termination of the United States’ project to develop a repository for high-level nuclear waste. After completing her bachelor's degree in Industrial and Operations Engineering at the University of Michigan in 2011, she moved to Stockholm to work at the Swedish Nuclear Fuel and Waste Management Company. In 2017, Lindsay was awarded a Ph.D. in geochemistry by Stockholm University, and between 2017 and 2020, she was a MacArthur post-doctoral fellow, first at George Washington University and then, at CISAC. During this time, she assessed the technical viability of concepts to dispose of spent nuclear fuel in deep boreholes and she characterized the radioactive waste streams that might be generated in advanced fuel cycles and discussed their implications for geologic disposal.