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Story summary
- UK Health Security Agency estimates 2,877 deaths during May-June 2026 heatwaves, double the 2025 summer total.
- May 2026 heatwave caused 753 deaths, while June heatwave caused 2,124 deaths.
- Scientists say 42% of the 2,700 May-June heat deaths stem from human-caused warming.
- England and Wales ONS reports over 40,000 excess heat-related deaths from 1988-2025.
- People aged 65+ faced at least a 50% higher mortality risk when temperatures exceeded 24 °C.
