France's Recurring Heatwaves and the Urgent Need for Climate Adaptation

France is once again in the grip of a severe heatwave, with temperatures soaring to record-breaking levels and prompting widespread disruption. This recurring phenomenon highlights a critical gap between scientific warnings and the nation's level of preparedness. As researcher and climate scientist François Gemenne points out, the crisis narrative that emerges only during peak temperatures obscures the urgent, year-round need for structural adaptation. The country's current approach is reactive, treating heatwaves as emergencies rather than as predictable consequences of a changing climate that require systemic solutions.

The Recurring Pattern of Crisis and Forgetfulness

Each new heatwave in France follows a familiar script: record temperatures are broken, schools close, transport is disrupted, and the media focuses intensely on the immediate suffering. However, as Gemenne laments, as soon as the temperatures drop, the sense of urgency evaporates. This cycle of crisis and collective amnesia prevents the implementation of long-term strategies. The current heatwave, which began on June 17, has already caused more than 800 school closures and significant train cancellations, but these disruptions are merely symptoms of a deeper, unaddressed vulnerability.

The scientific community has been warning about this for decades. The increasing intensity and frequency of extreme events in Europe are well-documented consequences of climate change. Yet, political and public attention remains episodic. This pattern allows systemic issues—like the poor state of building insulation and urban heat islands—to persist. The failure to treat these heatwaves not as exceptional events but as a new normal is the core of the problem.

Building Renovation: The Priority of Priorities

According to Gemenne, the single most important adaptation measure is the large-scale renovation of public buildings and housing. The catastrophic condition of many schools and apartment blocks was made glaringly evident during this heatwave. A government plan for energy renovations was launched in 2019 but was subsequently abandoned. This is a critical oversight, as building renovations have a direct impact on public health, cognitive function, and social equity.

The lack of proper insulation and ventilation turns many buildings, particularly older apartments on top floors, into dangerous heat traps. Mortality rates are consistently higher in these settings during heatwaves. Renovating these structures is not just an environmental issue; it is a profound social imperative that protects the most vulnerable members of society.

Reconsidering the Role of Air Conditioning

The debate surrounding air conditioning (AC) in France is a contentious one, often pitting environmental concerns against public health needs. While some argue that widespread AC would exacerbate the climate problem, technological advancements have evolved. As Gemenne notes, refrigerant gases that were extremely harmful to the climate have been banned in the European Union since 2024. Furthermore, because France's electricity mix is largely carbon-neutral, the direct climate impact of modern AC units is now extremely limited.

The primary remaining concern is the localized release of heat in dense urban areas. However, given that people spend the vast majority of their time indoors, the public health benefits of AC in extreme temperatures can outweigh the local inconvenience. The social issue remains critical: AC is expensive and access to it is highly unequal. Therefore, the focus should be on collective solutions—installing AC in public buildings like schools and hospitals—while simultaneously working on urban greening and heat-adaptive city planning to reduce the need for individual systems.

The opposition to AC sometimes stems from a fear that reducing human suffering from climate impacts will weaken the motivation for decarbonization. Gemenne refutes this, arguing that people understand that decarbonization is in their long-term interest for sovereignty, competitiveness, and economic modernization. Suffering through a heatwave does not necessarily make one more inclined to support climate action; effective policy and visible benefits do.

Conclusion: From Crisis Management to Resilience

The cycle of panic and forgetting must be broken. France's preparation for a warmer world cannot be confined to emergency responses during a red alert. The country must invest in building renovations, implement equitable cooling solutions, and redesign its cities to be more resilient. This adaptation is necessary regardless of what other nations do; its benefits are immediate and local. Moving beyond the reactive crisis mode to a proactive strategy for resilience is the only way to ensure that the next heatwave, which is already a certainty, does not become a recurring national tragedy.

The true test of leadership will not be in how effectively the government manages a heatwave emergency, but in the structural changes it implements before the next one arrives. The temperatures will fall, but the need for action will not. The time to treat these preparations as an urgent, permanent priority is now.