The U.S. State Department announced elimination of the Office of Global Change in Apr. 2025; the change removes the office that historically coordinated U.S. positions in UN climate negotiations.
COP30 is scheduled for Nov. 10–21, 2025, in Belém, Brazil. The UNFCCC calendar and multiple institutional partners list those dates and location.
President Trump signed an order on Jan. 20, 2025, directing withdrawal from the Paris Agreement; news outlets reported the administration’s intention to exit the pact again.
Reporting describes substantial uncertainty about whether the federal government will field an official U.S. delegation to COP30 after the office closure. There is no public, authoritative announcement confirming a total U.S. absence.