• Overview
  • Events organized by or with UNEP participation

Where: New York, United States of America

See also: highlights from UNEP-organized events or at which UNEP senior officials are participating

More information on the General Assembly 

The 80th session of the UN General Assembly (UNGA 80) will open on 9 September 2025. The high-level General Debate will run from 23–27 September and conclude on 29 September 2025.

The SDG Moment will be held on 22 September to highlight inspiring action on the Sustainable Development Goals. The event will bring together a constellation of transformative global and national efforts and will demonstrate how just and inclusive transitions are accelerating progress, even in the face of global challenges.

The UN Global Compact Leaders Summit 2025 will convene on 23 September during the UNGA high-level week. The summit will bring together business leaders, UN officials, government leaders, SDG stakeholders, and civil society representatives to review the private sector’s contribution to advancing the SDGs.

With the pace and scale of the climate crisis growing across the globe, the UN Secretary-General is convening a Climate Summit on 24 September to serve as a platform for world leaders to present their new national climate action plans and seize the benefits of the new clean energy era.

Representatives from UNEP will be engaged in the following activities at UN Headquarters and for New York Climate Week.

Time zone: EDT 

See also: highlights from UNEP-organized events or at which UNEP senior officials are participating


21 September | 1200 - 1300 hrs | Side Event | NYC Climate Murals Official “Green Walking” Tour


22 September | 0900 - 1300 hrs | Side Event | Climate Action: A Food Waste Breakthrough

22 September | 0900 - 1030 hrs | Side Event | Climate Summit 2025: High-Level Solutions Dialogue on Accelerating Early Warning and Extreme Heat Solutions

22 September | 1230 - 1600 hrs | Official Meeting | UN Digital Cooperation Day Solutions Dialogue on Digital Public Infrastructure (DPI) for climate

22 September | 1400 - 1500 hrs | Side Event | NYC Climate Action Murals: Official Unveiling Ceremony


23-27 & 29 September | 0900 - 2100 hrs | Official Meeting | General Debate

23 September | 1230 - 1400 hrs | Side Event | Financing Green Buildings at scale: What role for development banks, public and private finance?

23 September | 1300 - 1500 hrs | Side Event | High-level roundtable "Building resilient cities, industries, and infrastructure through multi-level governance"

23 September | 1530 - 16:30 hrs | Side Event | Announcement of Young Champions of the Earth at the SDG Media Zone


24 September | 0800 - 0930 hrs |Side Event | Climate Summit 2025: Solutions Dialogue on Methane Reductions from Fossil Fuels

24 September | 1400-1800 hrs | Official Meeting | Special High-Level Event on Climate Action (Climate Summit 2025)

24 September | 1500 - 1630 hrs | Side Event | High-Level Roundtable "From New York to Belem Enhancing Mangrove and Coral Reef Action through Policy"

24 September | 1800-1900 hrs | Side Event | Presentation of “Hope and Reverence” Exhibition at C. Parker Gallery


25 September | 1100-1200 hrs | Official Meeting | 30th Anniversary of the World Programme of Action for Youth (Panel 1)

25 September | 1100 – 1200 hrs | Side Event | "The Peatland Breakthrough" at New York Climate Week

25 September | 1000 - 1300 hrs | Side Event | New York Climate Week - Global Battery Allience (GBA) Leadership Meeting

25 September | 1000-1800 hrs | Official Meeting | High-level Meeting on Noncommunicable Diseases and Mental Health and Well-being

25 September | 1430 - 1600 hrs |Side Event | Toward Gender Transformative Action on Super Pollutants