Record heat shifts the climate debate
June’s record-breaking heatwave has intensified concerns about Europe’s readiness for a warmer climate, exposing weaknesses in infrastructure, workplaces and public services across a continent long accustomed to milder weather.
The European Union has positioned itself as a global leader on climate policy and was among the first major economies to adopt a legally binding target of net-zero emissions by 2050.
But temperatures above 40 degrees Celsius, or 104 degrees Fahrenheit, in parts of Europe showed that cutting future emissions is only one part of the challenge. The region also needs to prepare for the effects of warming already underway.
Infrastructure struggles under extreme heat
Poland’s Deputy Climate Minister Krzysztof Bolesta said Europe has not done enough to adapt.
His comments followed disruptions to power supplies, bans on outdoor work in some places, train cancellations in Germany and a cargo train derailment in Sweden after extreme heat warped metal rails.
Spain, among the countries hit hardest, reported 1,000 excess deaths linked to the record heat.
Adaptation remains largely national
Preparing buildings, cities and public spaces for extreme temperatures is typically handled by national or regional authorities rather than by the EU.
Brussels argues that individual countries are better positioned to understand the specific risks they face, from wildfires in southern Europe to flood defenses in the Netherlands.
EU Climate Commissioner Wopke Hoekstra, who is expected to present an EU-wide climate resilience plan later this year, said the bloc should focus on shared scenarios and best practices rather than dictate local responses.
EU spending still favors emissions cuts
Although Europe is warming faster than any other continent, EU funding remains heavily weighted toward mitigation rather than adaptation.
Between 2021 and 2025, 72% of climate-related spending from the EU’s joint budget went toward mitigation, which focuses on limiting greenhouse gas emissions.
Only 18% went to adaptation, while 9% addressed both mitigation and adaptation, according to official figures.
Mitigation has clearer financial incentives
The EU and national governments have created several mechanisms to encourage emissions reductions.
These include renewable energy subsidies and the EU Emissions Trading System, which caps corporate emissions and allows cleaner companies to profit by selling unused pollution permits.
Bolesta said businesses do not have a comparable financial push to invest in adaptation.
He said mitigation has a clearer business case because companies can benefit from carbon markets, credits and renewable energy investment, while adaptation is often treated as a long-term cost or insurance policy.
Heat becomes an economic variable
Extreme weather linked to climate change, including heatwaves, droughts and floods, reduced European economic output by 0.3 percentage points last year, according to Dutch bank ING.
ING warned that heatwaves are no longer just weather events, but have become macroeconomic variables.
The bank added that the thermometer has become a leading economic indicator.
Productivity losses are rising
The economic risks vary across Europe.
Southern countries face threats to tourism and agriculture, while northern economies are discovering that many offices, factories and transport systems were not designed for intense heat.
One official estimate found that a single day above 30 degrees Celsius, or 86 degrees Fahrenheit, costs Germany’s economy 430 million euros, or $465 million, in lost productivity.
Despite that, only half of German offices are air-conditioned, according to the Federal Environment Agency. In southern Europe, the share is between 90% and 95%.
Germany confronts a design problem
Geraldine Dany-Knedlik of the German Institute for Economic Research DIW said Germany spent decades designing buildings for cold rather than heat.
That legacy has created a clear adaptation gap as higher temperatures become more frequent.
Irene Seemann, who works on business climate adaptation in North Rhine-Westphalia, said companies are beginning to understand that heat affects daily operations directly.
Using a football comparison, she said Germany had been “one-nil down” because heat had not previously been viewed as a major issue.
Businesses test practical solutions
Some companies are already making changes.
Project Floors, a German flooring company based in Cologne, could not structurally alter its historic glass-domed headquarters because of heritage laws.
Instead, it installed reflective film on its windows and lowered indoor temperatures by 10 degrees Celsius.
Managing director Bernd Greve said the measure was simple, effective and did not require power.
Deeper changes may be needed
Other adaptations will require more than small building fixes.
Companies may need to reorganize shifts so employees work during cooler parts of the day.
Cities may also need to rethink public transport systems, public spaces and urban design to reduce exposure to dangerous heat.
Lessons from the 2003 heatwave
Europe has made progress since the deadly 2003 heatwave, when peer-reviewed studies found around 70,000 excess deaths occurred across the continent during the summer.
The World Health Organization said this week that heat-related deaths in Europe today would have been about 80% higher without adaptation measures already in place.
Those measures include heat-health action plans, early warning systems, cooling spaces and outreach to vulnerable people.
Hans Henri P. Kluge, the WHO’s regional director for Europe, said these measures are “saving lives right now” and called for more of them across the region.
