Europe’s Infrastructure Strained as Record Heatwave Exposes Climate Vulnerabilities

A severe heatwave is gripping Europe, with temperatures approaching record June highs and causing deaths, hospitalisations, and widespread disruptions to transport and public services. France has recorded its hottest day on record, with the national average reaching 29.8C (85.6F) and one town exceeding 44C (111F). Authorities in France have linked 40 drownings since Thursday to the heat, alongside several heat-related deaths, including three elderly people near Bordeaux and two children found in a hot car in southern France. In Spain, a 90-year-old woman died from heatstroke near Bilbao, and a 68-year-old man died in Almeria.

The UK Met Office has issued a rare red warning for extreme heat, with temperatures forecast to exceed 38C (100F), leading to school closures and advice against unnecessary rail travel. High-level red heat alerts are in place across France, Spain, the UK, Germany, Switzerland, and Luxembourg. The extreme weather is driven by a heat dome sustained by an 'omega block' weather pattern, which traps hot, stagnant air over Western Europe.

Experts and the World Health Organization (WHO) attribute the increasing frequency and intensity of these heatwaves to the climate crisis, noting Europe is warming at twice the global average rate. UN Secretary-General Antonio Guterres used London Climate Action Week to call for accelerated climate action and a transition to clean energy.

Researchers said extreme heat is already one of the deadliest environmental hazards globally. Parsons at Royal Holloway said the impacts are not felt equally. “People over the age of 65 account for around 90 percent of mortality from heat stress whilst exposure to heat more generally is tightly structured by socioeconomic inequalities. “Lower-income communities are much more exposed to heat stress due to a combination of more poorly insulated housing and more physical outdoor occupations. Heat stress is thus a prime example of climate precarity in a globalised, environmentally vulnerable world.”

Scientists said climate change is making heatwaves substantially more likely and more severe. Global average temperatures are now about 1.25C (2.25F) above pre-industrial levels while 2024 reached 1.55C (2.79F) above those levels, according to Parsons. This has dramatically altered the likelihood of extreme heat events. “Heatwaves like we are seeing now are about 30 times more likely to happen than in the pre-climate change era,” he said. “Exceptional heatwaves like the current one would previously have been a once-in-300-year event but now occur more often than once a decade.”

The World Health Organization (WHO) has warned about the growing health risks posed by rising temperatures. WHO Director-General Tedros Adhanom Ghebreyesus said Europe’s heatwave was “putting people’s health at risk”. “The data are clear: Temperatures across Europe are rising at roughly twice the global average rate, increasing the likelihood and severity of extreme heat in the future,” he said. “We cannot afford further delay. Leaders must prioritise investment in climate-resilient health systems while also accelerating climate action and mitigating the drivers of the climate crisis.”

The heatwave coincides with London Climate Action Week, one of the largest annual climate gatherings in the world, attended by tens of thousands of delegates, including heads of state and United Nations Secretary-General Antonio Guterres. Guterres used the occasion to renew calls for faster action to reduce fossil fuel use. “The climate crisis and the energy crisis may seem separate, but they share the same destructive origin: fossil fuels,” he said. “They demand the same answer: a fast, fair transition to clean energy and a surge in adaptation, resilience and climate justice for those already facing climate harm.”

While concerns about climate change often rise during extreme weather, experts said public attention is polarised. “Climate change at present has become a highly political issue with a concerted media pushback against climate policy targets like net zero,” Parsons said. “This is no accident or a case of natural attentional attrition but has been led by media groups, such as News Corp and GB News amongst others, which have consistently pushed anti-net-zero editorial lines over the last five years.” He said the issue has become tied to political identity in several countries, particularly the United States. Despite this, major weather events reignite public concern. “There is a longstanding and consistent trend of extreme weather events prompting additional public concern around the climate,” he said. “These heatwaves fall very much into this category. With this in mind, now is a good time to push for stronger climate policy.”