More than 2,700 people may have died from heat-related causes in England and Wales during the May and June heatwaves, according to a study by experts from Imperial College London, the Met Office, and the London School of Hygiene & Tropical Medicine. The research estimates that around 550 deaths occurred between May 21 and 29, while nearly 2,200 deaths were linked to the June heatwave, which saw record-breaking temperatures of 37.7°C (99.9°F) in Lingwood, Norfolk.
The study highlights that 42% of these deaths were directly attributable to climate change, which has warmed the planet by approximately 1.4°C since pre-industrial times. Researchers note that human-induced global warming added between 3°C and 4°C to the maximum temperatures recorded during the heatwaves.
Heat Domes and Vulnerable Populations
Both heatwaves were caused by a "heat dome," a stalled area of high pressure that trapped hot air over the region. The study emphasizes that many UK homes are not built to withstand prolonged high temperatures, leaving residents vulnerable. Heat puts immense physical strain on the body, particularly affecting babies, older people, and those with pre-existing health conditions.
Healthcare Strain and Future Risks
The heatwaves forced several hospitals to declare critical incidents, and the London Ambulance Service faced its busiest day on record. Researchers warn that unless urgent action is taken to combat climate change, the UK will continue to experience dangerously hot summers, with rising death tolls and disruptions to infrastructure.
Public Awareness and Policy
Experts stress the need for greater public awareness about the dangers of extreme heat. Dr. Claire Barnes of Imperial College London noted that while people enjoy sunny weather, the reality is that climate-change-fueled heat is now claiming lives and disrupting essential services. The study calls for urgent policy measures to protect vulnerable populations during future heatwaves.