Heatwave Sweeps Across Europe: The Challenge of Air-Conditioning Adoption Under Extreme Heat

Keywords

Europe heat, air-conditioning penetration, heatwave response, climate adaptation, energy transition

Introduction

In the summer of 2023, a massive heatwave swept across Europe with overwhelming force. From France to Poland, and from Italy to Croatia, temperatures repeatedly broke historical records, leaving millions of people struggling to survive in extreme heat. Against this backdrop of climate crisis, one striking fact stands out: Europe—home to many advanced economies—has an air-conditioning penetration rate of only about 20%, far below that of other major economies. As rare heat becomes the new normal, European society is forced to confront a structural gap in infrastructure. Starting from the latest heat conditions, this article examines the deeper reasons for low AC penetration and explores the broader impact on society, the economy, and climate policy.

1. Historic heat: rewriting Europe’s weather records

According to AFP, France’s average temperature reached 29.8°C on June 23, the highest since weather records began in 1947. The previous day, June 22, the average had already reached 29.2°C—also a record-level figure. More worrying still, France’s weather service placed four departments under the highest red alert on June 24, pushing the population exposed to severe heat to around 44 million. Including orange-alert areas, more than 90% of the French population faced direct heat risk. On June 24, temperatures from Brittany to the Paris region and much of the southwest were expected to climb to 39-41°C.

This heatwave was not limited to France. High temperatures were also sweeping through Italy, the UK, Spain, and other Western European countries and moving eastward quickly. Poland’s weather service issued high-level alerts for western regions from June 25 to 27, forecasting temperatures that could break the 40.2°C historical record set in 1921. Croatia’s Adriatic coast also issued red alerts for June 26 and 27. Hungary said it would raise alert levels to the highest between June 27 and 30 as temperatures kept rising. A heat crisis spanning the whole continent is unfolding.

2. AC buying frenzy: market behavior under emergency demand

Faced with the relentless heat, French consumer behavior changed dramatically. In Europe’s mild climate, air conditioning has long not been a necessity, but now it has become a hot commodity. On June 22 alone, Carrefour sold 30,000 air conditioners and fans by 6:30 p.m. That number is staggering because it shows not only a surge in demand, but also a collapse in the public’s psychological defense—people no longer see the heatwave as a one-off event and are taking real action.

E-commerce data confirm the trend. On Amazon, sales of air conditioners and fans in France nearly doubled last week from a year earlier; French electronics retailer Fnac Darty also reported double-digit year-over-year growth. Behind these numbers are countless households making emergency choices in the heat. The experience of Thierry, an electrician in southwest France, is representative: he received far too many "urgent" AC installation requests. "In theory, in a residential complex, you have to submit a request to the owners’ meeting, but people don’t want to wait"—that line captures how extreme weather overwhelms normal procedures.

3. Structural problem: why air-conditioning penetration is so low in Europe

CNN reports that only about 20% of European households have cooling equipment. That is far below the U.S. level of about 90% and far below China and many other regions. The reason is not that Europeans do not care about comfort; it is that climate history, building traditions, and social systems have together shaped this pattern.

Historical climate inertia is the first factor. In the past, European summers saw heatwaves only occasionally and sustained high temperatures were uncommon, so people lacked urgency. Buying and installing an AC system is expensive, and if the belief is that heat is only a short interruption, consumers naturally hesitate. That inertia is now being broken by climate change.

Building constraints are the second barrier. Many of Europe’s older buildings, especially in historic cities, lack the structural conditions for outdoor AC units. Load-bearing walls, facade-protection rules, and strict requirements to preserve a uniform appearance all make retrofitting difficult. Even newer buildings are often designed to retain heat rather than shed it, which makes indoor conditions worse during heatwaves.

Complex property and regulatory procedures are the third obstacle. As electrician Thierry explained, installing AC in a residential complex may require approval from the owners’ meeting, a process that is slow even in normal times. Faced with sudden heat, people simply do not want to wait. In some communities, there is barely any consultation mechanism, so installation requests get stuck indefinitely.

High economic costs are the final barrier. The units themselves are expensive, installation can cost as much as—or more than—the equipment, and Europe’s electricity prices are among the highest in the world. Running AC for long periods in summer creates a hefty bill. For lower- and middle-income families, that is a serious extra burden.

4. Systemic challenges in a hot society

Heat is not just physically uncomfortable; it disrupts society as a whole. In France, the population exposed to the heat reached about 44 million, or more than two-thirds of the country. Hospitals saw surging emergency-room visits, outdoor workers faced health risks, power grids approached capacity limits, and crops and ecosystems came under pressure. These overlapping problems turn heat from a private comfort issue into a public-management challenge.

More troubling still, low AC penetration and social vulnerability feed each other. Households without cooling—especially elderly people and those with chronic illness—become the main victims. Yet mass AC use would raise energy consumption and emissions, further accelerating warming. That creates a painful trap of "fighting fire with fire."

5. Outlook: from emergency response to system response

This heat crisis will likely become an important turning point for Europe’s reflection on infrastructure resilience. In the short term, governments need more efficient heat alerts and emergency response systems, while providing cooling shelters and subsidies for vulnerable groups. In the medium term, retrofitting old buildings for energy efficiency and promoting passive cooling tools such as green roofs and shading systems is a more sustainable path. In the long term, city planning must treat climate adaptation as a core priority, improve building insulation, develop district cooling systems, and accelerate the supply of renewable energy to power AC demand.

Notably, Poland’s weather service has warned that the 40.2°C record from 1921 may be broken, reminding us that European heat is no longer an isolated weather event but part of the new climate normal. As Croatia’s red alerts along the Adriatic coast show, the entire continent stands at a crossroads in climate adaptation.

Conclusion

Under the onslaught of heatwaves, the AC buying rush is just the tip of the iceberg. It reflects a structural vulnerability in an advanced society facing extreme climate—the gap between adaptation capacity and the speed of climate change. As records keep falling and 90% of the population faces heat risk, Europe must move beyond emergency buying sprees and toward a systematic, forward-looking climate-adaptation strategy. That is not only a response to today’s crisis, but also a commitment to the quality of human life tomorrow. In this silent war, every household decision, every policy adjustment, and every technological breakthrough will help shape a cooler and more resilient future.