Heat Stress and Climate Change Are Reshaping Europe’s Labor Market Dynamics

Rising temperatures across Europe are no longer just an environmental concern. A major new study by researchers from the International Finance Corporation (IFC), the World Bank, University College London (UCL), and the University of Palermo shows that climate change is already affecting jobs, wages, and business growth across the continent. The study examined more than 40 years of data from 32 European countries and found that increasing heat is slowing employment growth and placing heavy pressure on vulnerable workers and firms.

The researchers used a climate measure called “wet-bulb temperature,” which combines heat and humidity to show how difficult it becomes for the human body to cool itself. Europe has experienced a sharp rise in these temperatures since the 1980s, especially in Southern Europe, where repeated heatwaves have become more common. Sicily, for example, recorded Europe’s highest-ever temperature of 48.8°C in 2021.

Millions of Jobs Could Be at Risk

The study found that even small increases in heat can have serious economic consequences. A rise of just 0.7°C in yearly wet-bulb temperature reduces employment growth by 0.3 percent two years later. While hiring eventually stabilizes, the jobs lost during heat shocks are not fully recovered.

According to the researchers, rising temperatures since 1980 may already have reduced employment in Europe by around 1.1 million jobs. That represents more than half of a normal year’s employment growth across the continent.

The impact is strongest in sectors where workers are directly exposed to heat. Agriculture, construction, tourism, transport, wholesale trade, and manufacturing are among the hardest hit industries because they rely heavily on physical labor and outdoor work. Poorer and hotter regions also face larger employment losses because businesses there often lack the resources needed to adapt.

Low-Paid Workers Are Bearing the Biggest Burden

One of the study’s most striking findings is that average wages rise after heat shocks, even though employment falls. Researchers explain that this does not mean workers are earning more overall. Instead, low-paid and low-skilled jobs disappear faster than higher-paying jobs.

As a result, the remaining workforce becomes more heavily made up of skilled and higher-paid employees, pushing average wage figures upward. In simple terms, climate change is hitting vulnerable workers the hardest.

The research also found that small and young firms suffer bigger employment losses than larger companies. Smaller businesses often have less money to invest in cooling systems, better infrastructure, or flexible work arrangements that could protect workers during extreme heat.

Businesses Are Still Not Fully Prepared

Despite growing climate risks, many European firms are still not adapting fast enough. Fewer than one-third of small businesses surveyed had invested in cooling technologies, while only about half of large firms had adopted common resilience measures such as energy-management systems or heat-resistant infrastructure.

The study suggests that weak adaptation is one reason why rising heat continues to damage productivity and jobs. At the same time, businesses are facing rising energy costs because cooling demand increases sharply during heatwaves.

Researchers also found that companies with easier access to finance and more flexible labor regulations are better able to cope with climate shocks. Firms struggling with limited credit access or rigid labor rules experience much larger employment declines when temperatures rise.

Climate Change Is Reshaping Europe’s Economy

Beyond immediate job losses, the research shows that climate change is gradually changing Europe’s economic structure. Rising temperatures are pushing labor away from lower-productivity industries toward more productive sectors. This transition is slow, but it suggests that climate change will increasingly influence where people work and which industries grow in the future.

The authors warn that without faster investment in climate adaptation, Europe could face deeper inequality, weaker productivity, and slower economic growth in the coming decades. They argue that adaptation policies, including cooling systems, resilient infrastructure, and worker protection measures, should now be seen as economic priorities as much as environmental ones.

The study ultimately delivers a clear message: climate change is no longer a future threat to Europe’s labor market. It is already reshaping jobs, businesses, and economic opportunities across the continent.