Europe is facing escalating challenges from extreme heat as a third heatwave in June drove temperatures above 40 degrees Celsius in parts of Spain and France, exacerbating wildfires and straining public services across the continent. The heatwaves have been linked to approximately 20,000 deaths this summer, with Germany and France reporting significant increases in excess mortality.

The deputy director of the EU’s Earth-observation agency Copernicus, Samantha Burgess, highlighted that Europe is warming at more than twice the global average rate, partly due to ongoing fossil fuel consumption. Germany recorded a 30 percent rise in excess deaths during its recent heatwave, with over 5,480 fatalities, while French provisional figures indicate about 2,025 deaths attributable to heat-related causes. The World Health Organization’s regional director Hans Kluge emphasized the urgent need for national heat health action plans, noting that fewer than half of European countries currently have such strategies in place.

Although all EU member states have adopted climate adaptation policies alongside emissions reduction targets, gaps remain in preparedness. The European Commission expects investment of up to €70 billion annually until 2050 to bolster resilience against climate impacts. The bloc is also mobilizing its largest wildfire response on record, deploying nearly 800 firefighters after more than 200,000 hectares burned in 2025.

Urban areas face specific vulnerabilities, with many cities featuring older buildings that do not mitigate heat effectively and limited green spaces or water bodies for cooling. Air conditioning penetration varies widely across Europe, from as low as 7 percent in Germany to almost 80 percent in Greece. Dense urban districts, particularly those with socioeconomic disadvantages, are experiencing nighttime temperatures up to 9 degrees Celsius higher than wealthier neighborhoods, as seen in Brussels.

Local governments are adopting various measures to address heat risks. In Spain, the government moved its annual fire-prevention campaign forward and expanded aerial firefighting resources. The Ministry of Energy and Environment committed €200 million to improve heating and cooling in schools, while Barcelona’s council is using tourist tax revenues to install air conditioning in educational facilities. It has also distributed “alert bracelets” to thousands of outdoor workers for monitoring heat stress. Madrid has converted public spaces into “climate shelters” and offers free cultural events in cooled venues to support residents without air conditioning.

Responses vary across countries. Italy, despite adopting a climate adaptation plan in 2023, has seen limited implementation and political skepticism about the severity of climate impacts. Environmental advocates point to insufficient urban greenery and maintenance, particularly in lower-income neighborhoods. In Berlin, local authorities launched a heat strategy last year focusing on tree planting and infrastructural upgrades, supported by a federal commitment of roughly €10 billion annually toward climate resilience. However, municipal capacity and staffing remain challenges.

In France, political debates have shifted as the far-right Rassemblement National now calls for widespread air conditioning installations in vulnerable institutions, diverging from earlier climate skepticism. The government has ordered €100 million in cooling equipment for hospitals and activated services to check on isolated residents. Preservation regulations present obstacles to modernizing historic buildings, especially in Paris.

Switzerland is also confronting accelerated warming, with investments underway in innovative lake-based cooling systems in Geneva and Zurich, costing more than $1 billion combined. Local authorities aim to simplify administrative hurdles around air conditioning installation to promote adaptation.

Athens has appointed a chief heat officer to coordinate resilience measures, including heat risk classification, real-time heat maps, and the rehabilitation of ancient water sources. Despite these efforts, the city contends with dense urban infrastructure and limited green space, heightening vulnerability to heat stress.

As Europe contends with rising temperatures and associated impacts, experts stress the need for comprehensive strategies combining preventive investment, urban planning, and social measures to protect vulnerable populations and mitigate climate risks.