WHO Urges Action on Rising Heat Risks for Workers Amid Climate Change

Wed Oct 22 2025 01:59:35 GMT+0300 (Eastern European Summer Time)

A recent report by the WHO emphasizes the urgent need for protective measures against heat stress, particularly in construction and agriculture, as climate change intensifies.

The World Health Organization highlights the increasing health risks from extreme heat in workplaces, particularly affecting sectors like construction, with many countries beginning to adopt measures to protect workers. The report underscores the urgency for adaptation strategies to mitigate health risks and maintain productivity as heatwaves become more common.

The World Health Organization (WHO) has issued a stark warning regarding the health risks posed by extreme heat in the workplace, particularly as climate change leads to more frequent heatwaves. A recently released report from the WHO and the World Meteorological Organization calls for enhanced protections for workers globally, indicating that millions are already facing the dangers of heat stress, which can severely impact both their health and work performance.

Rüdiger Krech, the WHO's director of environment, climate and health, emphasizes that extreme heat is not merely uncomfortable; it presents genuine health hazards. "If you're working in heat and your body temperature increases to over 38C for an extended period, then you are at risk of serious heat-related issues such as stroke and kidney failure," he stated.

With the last decade recording unprecedented high temperatures, adaptation strategies are deemed necessary, as evidenced by regions in Europe regularly experiencing temperatures exceeding 40C (104F). In certain parts of Africa and the Middle East, readings can soar up to 50C. The Mediterranean reported record average surface temperatures of 26.68C in July, while the UK's Met Office noted that the current summer could be among the hottest since records began in 1884.

Beyond health concerns, the WHO's findings suggest that increased temperatures can severely hinder productivity. The report notes that for each degree above 20C, productivity drops by 2%. Additionally, during the 2023 heatwave, Switzerland experienced a 7% rise in workplace accidents when temperatures surpassed 30C, attributed to both concentration challenges and sleep disruption caused by the heat.

Countries such as Italy are beginning to implement measures, including emergency decrees that prevent outdoor work during peak temperatures. Similarly, in Switzerland, construction activities were halted during intense heat, a decision supported by major trade unions advocating for worker safety.

The report also addresses the heightened vulnerability of specific groups, including the elderly and young children. In Germany, for instance, schools can enact a “Hitzefrei" policy when temperatures escalate too high, but changes are needed to accommodate increasingly common heat conditions. WHO officials acknowledge the complexity of halting education, especially in light of previous COVID-19 disruptions, yet underline the importance of ensuring safe learning environments through eventual adaptations, such as improved ventilation and air conditioning in school buildings.

Krech advocates for inclusive consultations in developing these adaptation strategies, stressing the long-term benefits of proactive investment in worker and student safety. "Consideration must be given to school uniforms and their suitability for heatwaves," he remarked, highlighting that while short-term costs may seem daunting, failing to adapt could lead to greater economic losses from health issues and reduced productivity.

As climate-driven extreme weather continues to reshape life worldwide, the WHO's message is clear: now is the time for action to ensure safe and productive workplaces and educational environments.