Climate Change 2025 Updaten. Finds that nations must deliver dramatically stronger ambition and action in the next round of nationally determined contributions or the. The following is a statement from un climate change executive secretary simon stiell on the release of the 2025 nationally determined contributions (ndc) synthesis report.

More details will be provided in the wmo’s state of the climate 2025 update, released on 11 november 2025 at cop29. The year 2025 has seen record warm temperatures for seven of the nine months of the year where data.