| 1 | UNOC3 – 2025 United Nations Ocean Conference | 9–13 June 2025 | Nice, France | United Nations & SDG 14 (Oceans) Conference |
| 2 | 62nd Session of UNFCCC Subsidiary Bodies (Bonn Climate Talks) | 16–26 June 2025 | Bonn, Germany | UNFCCC Climate Negotiations |
| 3 | 4th International Conference on Financing for Development (FfD) | 30 June – 3 July 2025 | Seville, Spain | UN + Development Finance |
| 4 | High-Level Political Forum on Sustainable Development (HLPF) | 14–23 July 2025 | New York, USA | UN ECOSOC SDG Review |
| 5 | Sixth Global Conference on Climate & SDG Synergies | 27–28 May 2025 | Copenhagen, Denmark | UN + UNDP + UNEP Cross-agency Climate-SDG Action |
| 6 | UN BeSci Week (Behavioural Science Week) | 7–11 April 2025 | Virtual / UN Entities | UN Behavioural Science events |
| 7 | 7th Session of United Nations Environment Assembly (UNEA-7) | 8–12 December 2025 | Nairobi, Kenya | UNEP highest policy body |
| 8 | UN Climate Change Conference – COP30 | 10–21 November 2025 | Belém, Brazil | UNFCCC annual climate summit |
| 9 | Second World Summit for Social Development (World Social Summit) | 4–6 November 2025 | Doha, Qatar | UN General Assembly social development focus |
| 10 | World Climate & Biodiversity Summit | 25 September 2025 | New York, USA | Global climate & nature action alongside UNGA week |
| 11 | Climate Week – Yeosu (Climate Week 1) | 21–25 April 2026 | Yeosu, S. Korea | UNFCCC regional climate dialogue |
| 12 | Climate Week – Baku (Climate Week 2) | 7–11 September 2026 | Baku, Azerbaijan | UNFCCC regional climate dialogue |