Europe: The Deadliest Cities in Case of a Heatwave

Research reveals that European cities are more vulnerable to heatwaves compared to other developed regions. During a heatwave in 2025, approximately 2,300 people died in 12 European cities.

The increase in mortality in Europe due to heatwaves is greater than in America or Asia, as temperatures were 1 to 4 degrees Celsius higher than in the past, causing heatstroke and exacerbating chronic diseases.

Europe is warming faster than most parts of the world, with average temperatures rising by 0.53℃ per decade since the mid-1990s.

The lack of air conditioning is a factor, with low rates of homes with air conditioning in countries such as Britain, the Netherlands, and Italy. Cities with concrete and asphalt structures, as well as few green spaces, are more vulnerable.

Italian cities such as Milan and Bologna face major problems, while Amsterdam and London are also particularly deadly cities during heatwaves. Poorer areas are more affected due to lack of green spaces and poor-quality housing.

By 2050, Florence may see its heat-related mortality rate triple, while even Dublin will face a significant increase.