Overview
- The January 7 presidential memorandum instructs agencies to end participation and funding, where law allows, for 66 organizations, explicitly including the UNFCCC and the IPCC.
- Formal notifications for many departures are still pending, and legal scholars expect challenges over authority to exit treaty‑anchored bodies such as the UNFCCC, which Congress approved in 1992.
- UN officials and advocacy groups condemned the withdrawals, while Secretary of State Marco Rubio defended them as ending subsidies to ineffective institutions, and critics like John Kerry and Linda Thomas-Greenfield warned of strategic costs.
- UN finances face strain as the U.S. contributed about $820 million, or roughly 22% of the UN regular budget in 2025, with cuts expected to affect climate and other programs.
- Analysts describe a shift to multilateralism à la carte that could open space for rivals and reshape standards, with regional effects highlighted in concerns that Taiwan’s international access could narrow after the U.S. quits WHO and other forums.