Sam Geldin is a Postdoctoral Research at the Penn Institute for Urban Research. He got his PhD from the Department of City and Regional Planning with interests in climate adaptation, disaster risk reduction, and urban governance in the Global South. He is particularly passionate about enhancing subnational climate action efforts through policy, planning, and comparative urban studies. Sam previously supported two transnational climate action networks, policy formulation in the California Governor’s Office of Planning, and a research initiative facilitated by the UNFCCC Secretariat. He holds an MSc in Environmental Science from Yale, where his master’s thesis investigated the diffusion of adaptation practices through city networks in Indonesia. He also holds a BS in Environmental Science and a BA in Geography from UCLA.