Across Europe, rising temperatures and frequent heatwaves are driving a growing demand for air-conditioning, exposing significant gaps in the continent’s adaptation to a warming climate. While nations like Spain have seen higher rates of air-conditioning use, much of Northern Europe remains poorly equipped to cope with extreme heat, as homes designed for colder climates increasingly become heat traps.
The severe heatwaves affecting Europe since May have forced many residents to seek relief from soaring indoor temperatures often exceeding outdoor heat, particularly at night. For example, Hugh, a resident of Essex, England, finds his modern 2011-built home inhospitable during heatwaves and resorts instead to cooling off in his car. Such experiences highlight the challenges faced by many households, especially older adults and those with health vulnerabilities, as Europe records thousands of heat-related excess deaths.
Despite the intensifying threat, less than 25 percent of European homes had air-conditioning units as of 2025, compared to more than 80 percent in countries like the United States, Japan, and Singapore. Britain and France report notably low adoption rates, around 20 and 25 percent respectively, while Spain’s figure reaches 50 percent. These disparities reflect varying national policies, economic factors, and cultural attitudes. In France, for instance, air-conditioning remains controversial due to concerns about energy consumption, environmental impact, and contributions to the urban heat island effect.
Experts emphasize that the historic view of heat as a temporary nuisance rather than a serious health risk is shifting. The United Kingdom’s Climate Change Committee recently estimated that future heatwaves could cause 92 percent of current homes to overheat, raising urgent questions about building design and public health protections. This has prompted regulatory changes, such as London Mayor Sadiq Khan’s draft climate adaptation plan, which aims to ease approval processes for air-conditioning installations and mandates shading measures for new buildings.
Public initiatives are also emerging. France has allocated over €130 million to support cooling systems in schools and nurseries, while plans are underway to retrofit public transport in the Paris region with air-conditioning by 2032. Nevertheless, low-income households remain disproportionately affected, as they often live in heat-retaining urban areas and face energy poverty, limiting their ability to afford cooling solutions.
Experts advocate for a multi-faceted approach beyond just installing air-conditioning. Improving building designs to perform efficiently in both winter and summer, incorporating passive cooling techniques, enhancing urban greenery, and using reflective materials are all part of the solution. Communication and heat-health warning systems are also critical for protecting vulnerable populations.
Concerns have been raised about the potential strain on power grids due to increased air-conditioning use during peak heat periods. However, some analysts argue that the rise in electricity demand would be manageable, especially with investments in solar power, clean energy infrastructure, and energy storage. For example, solar panels have helped some British households offset air-conditioning electricity use during recent heatwaves.
As Europe adjusts to hotter summers, air-conditioning is becoming an essential element of broader climate adaptation strategies. Future urban landscapes may include widespread adoption of cooling technologies alongside traditional measures such as window shutters, reflective building surfaces, and expanded green spaces—all aimed at protecting lives and ensuring resilience to rising temperatures.