Overview
- Copernicus reports a 2025 global mean of 14.97°C, about 1.47°C above the 1850–1900 baseline and 0.59°C above the 1991–2020 average.
- The 2023–2025 global average surpassed 1.5°C above preindustrial levels for the first time, highlighting how close the world is to the Paris Agreement limit.
- Long‑term warming stands near 1.4°C, and Copernicus warns the 1.5°C threshold could be reached by late this decade if current trends continue.
- Heat exposure intensified as about half of Earth’s land area saw more days with strong heat stress, while hot, dry, windy conditions drove wildfires that produced toxic pollution in parts of Europe and North America.
- Agencies say 2026 could rank among the five warmest years and another El Niño is possible in the near term; in Spain, Aemet says 2025 tied 2024 as the third‑warmest year on record with three national heat waves.