Overview
- World Weather Attribution logged 157 major extreme‑weather events in 2025 worldwide across floods, heatwaves, storms, wildfires, droughts and cold spells.
- Of 22 events probed with attribution analysis, 17 were made more likely or more intense by anthropogenic warming, while five extreme rainfalls showed no clear signal.
- Modelled case studies found the August Iberian wildfires were about 40 times more likely and Los Angeles’ January fires about 35% more probable, with roughly 400 deaths and an estimated $30 billion in insured losses.
- Tropical cyclone Melissa’s peak winds reached about 288 km/h versus an estimated 270 km/h in a no‑warming world, indicating stronger storms under current conditions.
- The assessment says 2025 is likely the third consecutive year above 1.5°C, as German insurers estimate €2.6 billion in domestic natural‑hazard losses and warn of rising long‑term risk.