Sulgiye Park is a research scientist at Stanford Doerr School of Sustainability. Her research interests include 1) U.S. nuclear waste management and 2) utilizing geological resources to better understand North Korea’s nuclear weapons production capacity. In the former, she examines the key elements of the U.S. legal and regulatory framework on nuclear waste and how advanced nuclear reactors affect waste management. For the latter, she uses geological maps and geochemical literature to investigate how many nuclear weapons North Korea can build using indigenous resources. Other ongoing projects include understanding the U.S. strategic narratives around rare-earth elements, cooperation with China on resource management, and using open-source intelligence to analyze North Korea’s nuclear fuel cycle. While pursuing her fellowship, Sulgiye was an accelerator for Stanley Peace Foundation.