Climate Change 2025 Update. The first six months of 2025 have each set new temperature. More details will be provided in the wmo’s state of the climate 2025 update, released on 11 november 2025 at cop29.
The past year was 1.52 degrees hotter on average than temperatures before industrialization, according to data from copernicus, the european union’s climate and. In the latest “state of the climate” quarterly update, carbon brief assesses the first full six months of 2025 and finds: