Junsoo Kim investigates the state-nature relationship from an epistemological perspective known as urban political ecology. Kim has investigated the social-historical process by which various nonhuman agents intervened in the formation of East Asian developmentalism and urbanization, focusing on their material properties through the lens of more-than-human sociology. He explored the 'state-nature' relationship in the context of East Asia with regard to the colonial experience, the developmental state, and the cold war. Previously, the nation-state was considered a socially constructed subject in which only human agents were part of the construction of the state. However, in his argument, nonhuman agencies shape nation-states and alter the practice of state strategies and their formation. In this context, Kim published several research papers like Urban Pigeons and South Korean Development Urbanization, African swine fever viruses and more-than-human-territoriality, a pandemic that altered human-nature relationships, and Invasive Species (Procambarus clarkii) and its ontological politics and more-than-human-biosecurity. In this project, Kim observes the planetary urbanization process of sand, which is the material foundation that sustains the Korean peninsula's developmental urbanization. He examines the political ecology of sand by focusing on sand's social material figures. This project aims to provide a new understanding of the relationship between South and North Korea's social, political, and ecological entanglements.