Hang Ryeol Na (first name: Hang Ryeol; last name: Na) holds a Ph.D. in Environmental Science, with a focus on environmental and natural resources policy, from the State University of New York College of Environmental Science and Forestry. He has taught a range of interdisciplinary courses bridging science, policy, and sustainability practice at institutions such as the Johns Hopkins University Center for Talented Youth, Rochester Institute of Technology, and All Seeds Academy.

In addition to his academic work, he serves as the R&D Team Leader at Green Oil Inc., a renewable energy company that collects used cooking oil for conversion into biofuels. His team is currently developing a system for producing hydrogen from food waste, funded by the National Research Council of Canada.