Why Europe is still not ready for extreme heat

As the first major heatwaves of the summer sweep across Europe, millions of people are once again facing dangerously high temperatures that expose a persistent and troubling reality: much of the continent remains ill-prepared for extreme heat. Despite years of warnings from scientists and a growing body of evidence linking climate change to more frequent and intense heatwaves, governments across Europe continue to struggle with protecting vulnerable populations and adapting infrastructure to a hotter future.

Heat is Europe’s deadliest weather hazard

Unlike floods, storms or wildfires, extreme heat often arrives without dramatic images of destruction. Yet it remains the deadliest weather-related threat in Europe. Tens of thousands of excess deaths have been linked to major heatwaves in recent years, particularly among elderly people, those with chronic health conditions and residents of densely populated urban areas.

Public health experts warn that many European cities are still designed for a climate that no longer exists. Buildings often lack adequate cooling systems, while urban areas absorb and retain heat, creating so-called “heat islands” where temperatures can remain dangerously high even during the night.

Infrastructure built for another era

Europe’s infrastructure was largely developed during periods when prolonged extreme heat was relatively uncommon. Railways, roads, power grids and public transport systems are increasingly showing signs of stress during heatwaves.

Train services have repeatedly been disrupted as tracks expand under intense temperatures. Electricity networks face growing demand from cooling systems, while hospitals and care facilities often struggle to maintain safe indoor conditions during prolonged heat events.

In southern Europe, authorities have become more experienced in managing heat risks, but even countries accustomed to hot summers are now facing temperatures that exceed historical norms. Meanwhile, northern and central European nations are confronting heat extremes that were once considered rare.

Governments are moving too slowly

Many European governments have introduced heat action plans, warning systems and public awareness campaigns. However, climate experts argue that implementation remains fragmented and insufficient.

Cooling centres, urban greening projects and emergency response measures are often concentrated in larger cities, leaving smaller communities with fewer resources. Public buildings, schools and care homes frequently lack modern cooling systems, while building regulations have been slow to adapt to new climate realities.

Critics argue that policymakers continue to treat heatwaves as temporary emergencies rather than a permanent feature of Europe’s future climate.

The economic cost is rising

The impact of extreme heat extends far beyond public health. Agricultural production is increasingly threatened by drought and high temperatures, while labour productivity declines when outdoor work becomes dangerous. Tourism, one of Europe’s largest industries, is also facing disruption as traditional summer destinations experience increasingly uncomfortable conditions.

Insurance companies and economists warn that the financial consequences of repeated heatwaves could become one of the most significant climate-related challenges facing the continent over the coming decades.

Adapting to a hotter Europe

Scientists stress that adaptation measures already exist. Expanding green spaces, redesigning cities, improving building standards and investing in resilient infrastructure can significantly reduce heat-related risks. Better public health planning and targeted protection for vulnerable groups can also save lives.

However, these solutions require long-term investment and political commitment. As temperatures continue to rise, experts argue that Europe has little time left to prepare.

A warning from the first heatwaves

The early heatwaves of 2026 serve as another warning that extreme heat is no longer an exceptional event. It is becoming a defining feature of Europe’s climate.

Whether governments can move quickly enough to protect their populations remains an open question. What is increasingly clear is that future summers are likely to become hotter, longer and more dangerous, making adaptation not merely desirable but essential.

Newshub Editorial in Europe – 4 June 2026