Overview
- WWA cataloged 157 high-impact disasters in 2025, with 22 examined in depth and 17 found more likely or more severe due to human-caused warming.
- Several heatwaves were estimated up to 10 times more likely than a decade ago, with one European event linked to about 24,400 deaths.
- Global temperatures stayed exceptionally high despite La Niña conditions, which researchers attributed to ongoing greenhouse gas emissions from fossil fuels.
- Scientists warn millions are approaching limits of adaptation, with vulnerable and marginalised communities bearing the brunt and data gaps constraining assessments in parts of the Global South.
- COP30 in Brazil concluded without a fossil-fuel phaseout plan, strengthening calls from researchers for rapid, deep emissions cuts.