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Extreme Weather Fueled by Warming World
6 Nov
Summary
- Human activity, especially fossil fuels, intensifies weather extremes.
- UK's 2026 summer heatwave was 130 times more likely due to climate change.
- Extreme heat and rainfall events are becoming more frequent globally.
Human activities, predominantly the burning of fossil fuels, are significantly intensifying extreme weather events across the globe.
Rising global temperatures are directly linked to more frequent and severe heatwaves. For instance, the UK experienced its hottest summer on record in 2026, an event made 130 times more probable by climate change. This trend is mirrored globally with intense heatwaves affecting Australia, India, and Europe.
Climate change also exacerbates rainfall extremes. UK winters from 2016 to 2025 were wetter, and globally, heavy rainfall events have escalated in frequency and intensity. Hurricane Melissa in October 2025, for example, saw its extreme rainfall increased by 16% due to climate change.
Drought conditions are also worsening in some areas due to shifting rainfall patterns and increased evaporation from heatwaves. This has led to record low river levels in Europe and severe drought conditions in Jamaica and Puerto Rico.
Wildfire conditions are becoming more conducive with extreme heat drying out vegetation. Fires in Chile and Argentina in January 2026 were 36% larger due to climate change, and Canada experienced conditions twice as likely to enable fire spread.
