The UN Environment Programme’s (UNEP) North America Office was established in Washington, D.C. in 2000 and closed at the end of 2025. The mission was to support UNEP’s work around the world by fostering cooperation and building partnerships between North American stakeholders and the broader international community to address pressing environmental issues.
The functions of the previous regional office in Washington, D.C. and the New York Office have been consolidated, and the UNEP New York Office will now represent the organization across North America.
https://www.unep.org/regions/new-york-office

