Summer heat deaths in 854 European cities more than tripled due to climate change
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Report
Abstract
Focusing on 854 European cities, this study found climate change was responsible for 68% of the 24,400
estimated heat deaths this summer by increasing temperatures by up to 3.6°C.
The analysis was led by researchers at Imperial College London and London School of Hygiene & Tropical
Medicine, who warn the result is only a snapshot of the death toll linked to extreme heat as the cities studied
represent about 30% of Europe’s population. It follows a study by the same team which found climate
change could have tripled the death toll of a July heatwave in Europe.
estimated heat deaths this summer by increasing temperatures by up to 3.6°C.
The analysis was led by researchers at Imperial College London and London School of Hygiene & Tropical
Medicine, who warn the result is only a snapshot of the death toll linked to extreme heat as the cities studied
represent about 30% of Europe’s population. It follows a study by the same team which found climate
change could have tripled the death toll of a July heatwave in Europe.
Date Issued
2025-09-17
Citation
2025
Publisher
Grantham Institute and London School of Hygiene and Tropical Medicine
Copyright Statement
© 2025 The authors, produced for the Grantham Institute and the London School of Hygiene and Tropical Medicine. This work is licensed under the terms of the Creative Commons Attribution Licence. This licence permits all or part of the work to be copied and shared with others, provided that the original authors and source are credited. The full licence is available at: https://creativecommons.org/licenses/by/4.0
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