Workplace Heat Risks Escalate Across Europe Amid Rising Temperatures
Heat stress threatens 130 million European – Europe is experiencing record-breaking heatwaves that are increasingly challenging the health and productivity of its workforce. As climate change intensifies, these extreme conditions are no longer confined to southern regions but are now threatening workers across the continent, from southern cities to northern industrial zones. A recent study by the European Trade Union Institute (ETUI), an independent research body linked to the European Trade Union Confederation, has raised urgent concerns about the growing impact of heat stress on labor safety. The report, released on Thursday, outlines strategies to mitigate risks and protect workers in the evolving climate crisis.
Heat Stress Affects Over a Third of European Workers
The ETUI report reveals that approximately 130 million workers across Europe are exposed to dangerous levels of heat stress in their workplaces. This exposure leads to 277,000 injuries annually, along with 230 fatalities, underscoring the severity of the issue. The findings highlight a critical need for systemic changes to address the escalating threat, as heat-related incidents are becoming more frequent and intense. According to the report, these risks are not limited to traditionally hot regions; central and northern Europe are also experiencing a sharp rise in heat-related workplace accidents.
“The problem is most severe in the south, where heatwaves are already a regular occurrence. However, we’ve seen the fastest growth in heat-related incidents in central and northern regions, which are now catching up rapidly,” said Andreas Flouris, a physiology professor at the University of Thessaly. Flouris, one of the report’s authors, emphasized that the north’s increasing vulnerability is a cause for alarm, even as southern areas remain the primary focus of concern.
Climate Change Accelerates Heatwave Frequency and Intensity
The report attributes this surge in heat stress to the accelerating effects of climate change, which has intensified both the frequency and severity of heatwaves. These prolonged periods of extreme heat are not only endangering workers’ health but also reducing their ability to perform tasks efficiently. Flouris explained that the ideal working temperature is around 16°C, and every additional degree Celsius beyond that correlates with a measurable drop in productivity. “For every 1°C rise, there’s an average 2% decline in work performance,” he noted.
During typical heatwaves in southern Europe, productivity losses can reach 20 to 25%, while central regions face 8 to 14% reductions. Even in Scandinavia, where temperatures are historically milder, heatwaves have caused productivity drops of 3 to 6% over the past year. These figures illustrate the widespread economic consequences of the crisis, affecting industries as diverse as manufacturing, agriculture, and construction.
“The south is already hot, and it’s a problem. But the centre and the north are catching up very fast,” Flouris added. His comments align with data from a 2025 EU-OSHA survey, which found that nearly one in five EU workers reported working in extreme heat conditions within the last 12 months. This trend signals a shift in the geographic scope of the issue, requiring a more comprehensive approach to address heat risks across all regions.
Proposed Solutions for Workplace Heat Safety
To combat this growing threat, the ETUI report recommends the European Union implement targeted legislation focused on heat exposure in the workplace. The authors argue that current measures are insufficient and that mandatory heat risk assessments should be introduced to ensure employers identify and address vulnerabilities. “Only by knowing what we are dealing with can we protect workers and prevent the risks associated with heat exposure at work,” said Marouane Laabbas-el-Guennouni, a researcher at the ETUI.
The report also calls for a more sophisticated method of evaluating heat stress. While temperature is a key factor, the authors stress that humidity and wind speed must be integrated into risk assessment models. These additional variables can provide a clearer picture of how heat affects workers differently in various environments. For example, high humidity can amplify the body’s heat retention, while wind speed can either exacerbate or alleviate the effects of extreme temperatures.
Laabbas-el-Guennouni explained that heatwaves are not random events but measurable and predictable phenomena. This predictability, she argued, means that the EU can take proactive steps to safeguard its workforce. The proposed legislation would require companies to adapt their operations based on seasonal and regional variations in heat conditions, ensuring that all workers are protected regardless of their location.
Industry and Policy Collaboration Needed for Effective Mitigation
The ETUI report underscores the necessity of collaboration between policymakers and industry stakeholders to develop practical solutions. It highlights the importance of investing in infrastructure that allows for flexible working conditions, such as cooling systems, shaded workspaces, and adjusted schedules during peak heat periods. Additionally, the authors suggest that training programs for employees and employers on recognizing and responding to heat stress could significantly reduce the number of injuries and deaths.
While some countries have already introduced heat safety measures, the report argues that a unified EU-wide framework is essential to ensure consistency and effectiveness. The authors note that without such legislation, the region risks further economic losses and health complications. They also advocate for the integration of heat stress into existing occupational safety protocols, ensuring that it is treated as a priority alongside other hazards like noise and chemical exposure.
Climate change is no longer a distant threat; it is a present reality shaping the working conditions of millions. The ETUI’s findings serve as a timely reminder of the urgent need for action. By adopting comprehensive strategies and leveraging scientific data, the EU can transform its response to heat stress from reactive to proactive, ensuring a safer and more resilient workforce for the future.
Towards a Safer Work Environment in the Age of Climate Change
As Europe grapples with the consequences of rising temperatures, the ETUI report offers a roadmap for addressing the challenges posed by heat stress. The recommendations focus on creating a proactive system where employers are compelled to assess and mitigate risks using advanced metrics. This shift would not only safeguard workers’ health but also enhance overall productivity, which is crucial for maintaining economic stability in a warming world.
Laabbas-el-Guennouni emphasized that the solutions outlined in the report are grounded in scientific evidence and tailored to real-world scenarios. “Heatwaves are a measurable, predictable, and therefore preventable phenomenon,” she stated. By implementing these changes, the EU can reduce the strain on workers and create a more sustainable approach to labor safety. The report also calls for increased public awareness about the dangers of heat exposure, ensuring that both employers and employees are equipped to handle the challenges effectively.
The urgency of the situation is clear: heat stress is no longer a seasonal issue but a year-round concern that demands immediate attention. With the right policies in place, the EU can lead the way in protecting its workers from the escalating impacts of climate change, setting a precedent for other regions to follow. As the temperature continues to rise, so too must the commitment to ensuring that the workforce remains safe and productive in the face of these new challenges.
