Record 50,000 heat deaths in European cities, two-thirds linked to climate change

Key points

• Researchers modeled 50,391 heat-related deaths across 854 European cities from June to August 2026, the highest in 26 years.
• Approximately 65% of these deaths, or 32,619, are directly attributable to anthropogenic climate change, up from 40% at the start of the century.
• Italy, France, Spain, and Germany recorded the highest absolute death tolls, while Malta, Italy, and Hungary had the highest per-capita rates.
• People over 85 accounted for nearly half of the deaths, but 833 individuals aged 20 to 44 also died, indicating heat affects all age groups.
• The study notes that death certificates rarely list heat as a cause, meaning the actual toll is likely higher, especially in rural areas not included in the model.

Background

This summer followed a record-breaking August 2026, which tied the global heat record alongside July 2023, driven by fossil fuel emissions and a strengthening El Niño. Earlier in 2026, the Climate Impact Lab projected that the current El Niño could lead to 451,000 excess heat-related deaths globally by February 2027, highlighting the intensifying trend of extreme heat events worldwide.

How outlets are covering it

The Guardian and CNN emphasize the 'staggering' nature of the death toll and the rising proportion of deaths linked to climate change, noting that 65% of 2026 deaths are attributed to fossil fuel pollution. The New York Times highlights that the death toll is three times higher than what would have occurred without human-driven warming. ABC News focuses on the methodological aspects, noting that the study’s estimates align closely with national health agency data, such as the UK’s 2,800 excess deaths versus the study’s 2,700. All sources agree that the 2026 heatwaves were the deadliest in Europe’s recorded history, with CNN and ABC News stressing the need for immediate adaptation measures like cooling centers and early warning systems, while The Guardian and ABC News underscore the urgent need to reduce fossil fuel emissions to address the root cause.

Why it matters

The 2026 heat deaths underscore the escalating public health crisis posed by climate change, with Europe warming twice as fast as the global average. As heatwaves become more frequent and intense, vulnerable populations, including the elderly and those in poverty, face increased risks. The findings highlight the need for urgent policy action, including improved urban infrastructure, equitable access to cooling, and reduced fossil fuel use, to mitigate future heat-related mortality.

What to watch

International leaders will discuss these findings at the upcoming UN climate talks in Turkey, where pressure is mounting for faster action to limit global warming. Researchers and health officials are calling for expanded heat early-warning systems, increased investment in low-carbon cooling technologies, and community support networks to protect vulnerable individuals. The study’s authors warn that without significant reductions in fossil fuel emissions, future summers will be even deadlier, with heat-related deaths projected to rise faster than cold-related deaths decline.