Amid escalating global fragmentation, leading U.S. think tanks convened urgent discussions this week to address the deteriorating state of international cooperation. The Peterson Institute for International Economics and Brookings Institution hosted parallel sessions examining critical challenges in climate policy, taxation, and security alliances.
At the Peterson Institute, renowned economist Kimberly Clausing delivered a stark assessment of existing global agreements. While acknowledging the Paris Agreement as a foundational moral framework for climate action, she highlighted its critical deficiency: “The pact lacks enforceable compliance mechanisms or concrete incentives for participation.” Clausing pointed to Europe’s carbon border adjustment mechanism as a potential model for balancing environmental protection with domestic industry interests.
Notably, Clausing singled out China’s climate progress as exceptionally significant, stating: “China’s achievement of peak emissions at their current development stage represents an impressive feat.” This assessment aligns with Carbon Brief’s analysis confirming China’s stabilized or declining CO2 emissions over 21 consecutive months through early 2026. International Energy Agency and UN Environment Programme reports attribute this success to massive renewable energy expansion and strategic industrial reforms.
The dialogue expanded to international taxation, where Clausing warned about multinational profit shifting eroding national tax bases. She characterized the OECD/G20 minimum tax agreement as an imperfect but necessary step toward addressing free-rider problems, despite implementation challenges across divergent national systems.
Concurrently, Brookings Institution experts presented a grim outlook on Western alliances. Lawrence Freedman, Emeritus Professor of War Studies at King’s College London, described how traditional partners are developing hedging strategies amid declining confidence in U.S. leadership. “When certainty about your primary ally diminishes, nations inevitably pursue alternative options,” Freedman observed, noting European nations’ reluctant moves toward greater autonomy while maintaining security dependencies.
Security analyst Mara Karlin noted that current U.S. policies have created strategic openings for competing global powers. Joshua Rovner employed a powerful metaphor, comparing the international situation to an aircraft experiencing severe turbulence with unpredictable outcomes. He emphasized concerning disconnects between tactical military successes and long-term strategic stability, particularly referencing recent U.S. operations in Iran.
Both forums converged on a critical conclusion: addressing global collective-action problems requires inclusive frameworks that incorporate emerging powers across climate governance, economic policy, and security architecture. The discussions underscored that neither environmental sustainability nor international stability can be achieved through fragmented approaches in an increasingly multipolar world.