Belgium faces record heatwave mortality, highest in Europe; climate change and urban planning cited as factors

Belgium experienced the highest excess mortality rate in Europe during the late June heatwave, with preliminary data indicating an additional 2,000 deaths. This surge represents a 48% increase in mortality, far exceeding the rates seen in neighboring France (+23%) and the Netherlands (+13%).

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There is, for example, a big difference between Flanders and Wallonia. And this is explained by undeniable socio-economic factors.

The extreme temperatures disproportionately affected residents in poorer regions. Biostatistician Geert Molenberghs of KU Leuven/UHasselt explained that socioeconomic factors play a significant role, noting that a large house with green space offers more relief than a crowded apartment. Even within Flanders, the excess mortality rate was higher (+31%) compared to France and the Netherlands, suggesting issues with urban planning.

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It is less hot in a large house surrounded by a bit of greenery than in a crowded apartment.

Molenberghs pointed to Belgium's densely urbanized territory as a contributing factor to reduced cooling possibilities. He also noted that while the north of France experienced similar mortality rates, the southern regions, better adapted to high temperatures, did not see such a significant increase. The Netherlands, with a more structured approach to urban development, reported the lowest figures among neighboring countries.

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We must therefore look at our messy way of building.

Experts acknowledge that climate change is a primary driver of such extreme weather events. The unprecedented duration of the heatwave is a particular concern, raising fears of further heat-related mortality in the coming week. The data, compiled by the EuroMOMO network, highlights the vulnerability of certain populations and urban environments to rising global temperatures.

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Yes, it is indeed climate change and yes, we are responsible for it.