Giles Scott-Smith is Professor of Transnational Relations and New Diplomatic History and Dean of Leiden University College at Leiden University, The Netherlands. Gaetano Di Tommaso is Postdoctoral Researcher at the Roosevelt Institute for American Studies (RIAS), The Netherlands.Gaetano Di Tommaso is Postdoctoral Researcher at the Roosevelt Institute for American Studies in Middelburg, The Netherlands, and a lecturer at Radboud University. His research centers on the role of natural resources in U.S. history, with a particular focus on the Progressive Era. His work looks specifically at the extraction and use of specific raw materials, such as fossil fuels, examining their impact on life and politics across diverse scales, from local environments and communities in the U.S. to international governance and global ecosystems.Dario Fazzi is Assistant Professor of US and Environmental History at Leiden University and Senior Researcher at the Roosevelt Institute for American Studies (RIAS), The Netherlands.