Recent research by Imperial College London, the Met Office and the London School of Hygiene and Tropical Medicine suggests that at least 2,700 people died due to heat‑related causes in England and Wales during the May‑June 2026 heatwaves. The study attributes 42% of these deaths to the extra heat generated by human‑induced climate change.
Key Developments
- Two unprecedented heatwaves hit the UK in May (record 35.1 °C) and June (record 37.7 °C).
- Modelled excess mortality estimates: ~550 deaths (May 21‑29) and ~2,200 deaths (June 18‑28).
- Maximum daytime temperatures were 3‑4 °C higher than they would have been without global warming.
- The UKHSA will release official death figures in the coming weeks.
- The CCC warned that the UK is “not ready” for climate impacts and projected that by 2050, 92% of homes could become too hot.
Important Facts
The study used a combination of weather data, climate‑model simulations and historical excess mortality during heatwaves. While the models do not replace actual death records, they illustrate the scale of risk posed by extreme heat.
Key statistics:
- 2,700+ estimated heat‑related deaths (May‑June 2026).
- 42% linked directly to anthropogenic warming.
- Temperature spikes of 3‑4 °C above a no‑climate‑change scenario.
Exam Relevance
Understanding the health impacts of