Hilary Appel is the Podlich Family Professor of Government and George R. Roberts Fellow at Claremont McKenna College. She is the Director of the Keck Center for International and Strategic Studies. Her research examines the politics behind post-Communist economic reforms, the role of the EU and NATO in Eastern Europe and domestic and foreign policy in Russia. In addition to publishing multiple books, including From Triumph to Crisis: Neoliberal Economic Reform in Postcommunist Countries, co-authored with Mitchell Orenstein (2018), she has authored numerous academic articles in Comparative Politics, Comparative Political Studies, World Politics, EEPS, Post-Soviet Affairs, and others. hilary.appel@claremontmckenna.edu

Carol Bardi is a Brazilian ecofeminist researcher currently pursuing a PhD at University of Münster in Germany, while living in Florianópolis, Brazil. Carol has over fourteen years of professional experience in various contexts, both in for-profit and nonprofit organizations and initiatives, including seven years of experience working professionally and academically on food system just transitions. She is also engaged in feminist activism and agroecology movements and practice. Carol is also part of the editorial board of Degrowth.info. carol.bardi@uni-muenster.de

Frank Biermann is professor of global sustainability governance at Utrecht University in the Netherlands, where he directs the GlobalGoals Project, a €2.5 million research program looking at the effects of the Sustainable Development Goals, funded by a European Research Council Advanced Grant. He is the founder and was the first chair of the Earth System Governance Project, a global research network. Biermann has authored or co-edited twenty books and published over two hundred articles and book chapters on global governance and sustainability. He edits the Earth System Governance journal and two book series with MIT Press and Cambridge University Press. Biermann has received numerous awards, including the 2021 Distinguished Scholar Award in Environmental Studies from the International Studies Association. f.biermann@uu.nl

Dan Boscov-Ellen is an assistant professor in the Department of Social Science and Cultural Studies at Pratt Institute in Brooklyn, New York. He is an environmental political philosopher and ethicist with a background in critical theory. His research focuses primarily on the normative dimension of structural socioecological dynamics. He has published several articles on these themes in scholarly journals and periodicals like Environmental Values, Capitalism Nature Socialism, and Spectre (where he is also the associate editor of ecological politics). dboscove@pratt.edu

Charli Carpenter is a professor in the Department of Political Science and Legal Studies at University of Massachusetts Amherst and the director of Human Security Lab, an interdisciplinary initiative focused on shrinking the gap between elite and citizen views of human security. Her research interests include the protection of civilians, laws of war, humanitarian disarmament, global advocacy networks, political violence, and the role of pop culture in global security. She has published three books and numerous journal articles, served as a consultant for the United Nations, the State Department, the Department of Defense, and human rights NGOs, and is a columnist at World Politics Review. She tweets at @charlicarpenter. charli@polsci.umass.edu

Rachel A. Epstein is a professor of international relations at the Josef Korbel School of International Studies at the University of Denver. She is the author of In Pursuit of Liberalism: International Institutions in Postcommunist Europe (2008) and Banking on Markets: The Transformation of Bank-State Ties in Europe and Beyond (2017), a recipient of the Ed A Hewett award in political economy. She is also the co-editor (with Oliver Kaplan) of Speaking Science to Power: Responsible Researchers and Policymaking (2024), which examines the ethical dilemmas that can arise as researchers share their findings with policymakers. rachel.epstein@du.edu

Aarti Gupta is professor of global environmental governance at Wageningen University in the Netherlands. Her research focuses on accountability and equity in global climate politics and anticipatory governance of novel technologies, including biotechnology and climate engineering. She is a member of the Scientific Steering Committee of the Earth System Governance (ESG) research alliance, and a coordinating lead author of the ESG 2018 Science and Implementation Plan. She is also a principal investigator of the Netherlands Organization for Research–funded “Transformative Potential of Transparency in Climate Governance” (TRANSGOV) project, and co-editor of Transparency in Global Environmental Governance. She holds a PhD from Yale University. aarti.gupta@wur.nl

Rakhyun E. Kim is associate professor of earth system governance at the Copernicus Institute of Sustainable Development at Utrecht University in the Netherlands. He directs a European Research Council–funded research project on problem shifting between international environmental treaty regimes. He is a senior research fellow with the Earth System Governance Project, where he co-leads the Task Force on Earth System Law, the Working Group on Earth-Space Governance, and a research cluster of the task force on ocean governance. At the Copernicus Institute, he co-leads the Special Interest Group on Network Analysis for Sustainability. r.kim@uu.nl

Nadiia Koval is a foreign and security policy analyst and researcher. In October 2024 she joined the Ministry of Foreign Affairs of Ukraine. Previously she held positions at the Ukrainian Institute, Kyiv School of Economics, Foreign Policy Council “Ukrainian Prism,” the Diplomatic Academy of Ukraine, the National Institute for Strategic Studies, and the Ukrainian Institute for the Future. Her current research priorities include knowledge and perception of Ukraine and the Russia-Ukraine war by foreign policy actors, EU foreign and security policy, and the current state and strategic prospects of Ukrainian-Polish relations. nadiia.koval@ui.org.ua

Duncan McLaren is a Climate Intervention Fellow in Environmental Law and Policy at the Emmett Institute at UCLA School of Law. He researches the politics and implications for justice of novel technologies, particularly climate geoengineering interventions, particularly using public engagement tools. Prior to his PhD studies, completed in 2017, Duncan worked as an environmental researcher and campaigner, most recently as Chief Executive of Friends of the Earth Scotland. He has advised and consulted for research and financial institutions, government departments, philanthropic donors and non-governmental bodies on energy, climate, urban and sustainable development issues. mclaren@law.ucla.edu

Jeroen Oomen is assistant professor at the Urban Futures Studio and the Copernicus Institute of Sustainable Development of Utrecht University. His research focuses on the social, cultural, and scientific practices that create societies’ conceptions of the future. His main research interests are climate policy, geoengineering, and social theory. He is the author of the book Imagining Climate Engineering: Dreaming of the Designer Climate (2021) and co-author (with Maarten Hajer) of the forthcoming book Captured Futures: Rethinking the Drama of Environmental Politics (2025). j.j.oomen@uu.nl

Oxana Shevel is an associate professor of political science at Tufts University and the director of the Tufts International Relations Program. Her research and teaching focus on the post-Soviet region, especially Ukraine and Russia, and topics such as nation building, identity, citizenship and memory politics, church-state relations, and democratization processes. She is co-author (with Maria Popova) of a book on the root causes of the Russo-Ukrainian war, Russia and Ukraine: Entangled Histories, Diverging States (2024). Her earlier book Migration, Refugee Policy, and State Building in Postcommunist Europe (2011) won the American Association of Ukrainian Studies Prize for Best Book in the fields of Ukrainian history, politics, language, literature, and culture. Oxana.shevel@tufts.edu

Milada Anna Vachudova is a professor of political science at the University of North Carolina at Chapel Hill. Her current projects include protest in defense of liberal democracy across Europe, the impact of ethnopopulism on democratic quality, the revival of EU enlargement, and Ukraine's path to EU membership amidst the transformation of European institutions owing to Russia's war against Ukraine. She has held fellowships and grants from various institutions including the European University Institute, the Center for European Studies at Harvard University, the Center of International Studies at Princeton University, the National Science Foundation, and the National Council for Eurasian and East European Research. vachudov@email.unc.edu

Stacy D. VanDeveer is professor of global governance and human security at the John C. McCormack Graduate School of Policy and Global Studies at the University of Massachusetts Boston in the United States. He recently served as the 2023–24 Zennström Visiting Professor of Climate Change Leadership at Uppsala University in Sweden. His research interests include comparative and global environmental and resource politics, policymaking and governance institutions, the connections between environmental and security issues, and the role of expertise in policymaking. In addition to authoring and coauthoring over 130 articles, book chapters, working papers, and reports, he has co-edited or coauthored twelve books. stacy.vandeveer@umb.edu

Danielle N. Young is a UK Research and Innovation postdoctoral fellow at the University of Leeds researching potential parallels between the politics and governance of nuclear weapons and the politics and governance of emerging solar geoengineering technologies. She is a member of the Centre for Global Security Challenges and the Priestley Centre for Climate Futures at the university, and her broader research focus is the climate-nuclear nexus and the foundational instabilities of the modern international political system. d.young@leeds.ac.uk