WHO chief: Europe is warming fastest on Earth, health impacts need to be addressed

Europe has been gripped by an unprecedented heatwave over the past week, marking one of the most extreme weather events in modern history. This prolonged period of scorching temperatures has exposed critical vulnerabilities in infrastructure, public health systems, and societal preparedness. Across the continent, record-breaking temperatures have led to widespread disruptions, including damaged railway tracks, power outages, and the shutdown of nuclear power plants due to overheating cooling systems. Cultural institutions have had to limit their operating hours, while citizens have rushed to purchase portable air conditioners in droves.

The heatwave has already broken temperature records in several countries, with some areas experiencing temperatures exceeding 40 degrees Celsius for multiple consecutive days. In western Europe, high temperatures have persisted for nine to twelve days without interruption, with nighttime temperatures remaining dangerously close to 30 degrees Celsius. This lack of respite has compounded the effects of the heat, particularly in urban areas where heat accumulates due to limited natural cooling. Some regions have even experienced their second heatwave of the year, with the first occurring at the end of May. Climate scientists attribute this phenomenon primarily to global warming, which has significantly increased the likelihood of such extreme weather events.

The impact on human health has been severe. France's Minister of Health has reported a fourfold increase in cases of heat-related cardiac arrests, while Spain has recorded a rise in mortality rates linked to the extreme temperatures. Hospitals, schools, and other public buildings were largely constructed with insulation designed to retain warmth rather than dissipate it. Many older structures lack basic protective measures such as external blinds or awnings, which are among the most effective ways to reduce indoor temperatures during heatwaves. As a result, individuals have turned to portable air conditioning units, which are less efficient and more energy-intensive compared to built-in systems.

Energy networks across Europe are under immense pressure. Increased demand for electricity coincides with reduced production capacity, especially from nuclear power plants. These facilities rely heavily on river water for cooling, and when river temperatures exceed safety thresholds, they must shut down operations to prevent damage. This dual challenge—rising consumption and declining supply—has placed significant strain on the continent’s energy grid. Portable air conditioners, while providing temporary relief, further burden the system by increasing overall electricity usage, leading to higher costs for consumers and potential blackouts.

The World Health Organization (WHO) has highlighted the severity of the situation, noting that Europe is warming twice as fast as the global average. According to WHO Director-General Tedros Adhanom Ghebreyesus, hundreds of people have died as a direct result of the current heatwave. He emphasized the urgent need for European governments to implement action plans aimed at protecting public health from extreme heat. The organization is working closely with member states to enhance preparedness and strengthen healthcare responses to climate-induced threats. Recent data indicates that over 1,300 excess deaths have been recorded since June 21, with France alone reporting a 1,000-person increase in fatalities compared to normal levels.

Climate change has made once-in-a-generation heatwaves almost annual occurrences. Analysis by the World Weather Attribution (WWA) organization confirms that today’s temperatures would have been nearly impossible just 50 years ago, with similar heatwaves being approximately 3.5 degrees cooler. Experts warn that emissions from fossil fuels directly contribute to these extreme conditions, exacerbating the frequency and intensity of heatwaves. In Poland, a new national temperature record was set in Slubice, reaching 40.5 degrees Celsius. Meanwhile, Germany also broke its own record, with temperatures hitting 41.7 degrees Celsius in Neisse. In the Czech Republic, temperatures exceeded 41 degrees Celsius in Doksany, marking the first time such a reading has been recorded in the country’s official measurement network.

As the heat continues to break records, the long-term implications for Europe remain uncertain. While all EU member states have developed adaptation strategies, implementation remains hindered by insufficient funding. Environmental agencies stress the importance of immediate investment to mitigate future risks. Without swift action, the economic and social costs of these increasingly frequent heatwaves will continue to escalate, posing serious challenges for both public health and infrastructure resilience.