Workers around the world face serious risks from extreme heat, especially as climate change leads to more frequent heatwaves. A recent report from the World Health Organization (WHO) and the World Meteorological Organization (WMO) highlights that millions of workers are under threat from heat stress, impacting both their health and productivity.
This report marks the first comprehensive examination of heat stress in the workplace since 1969. Rüdiger Krech, the WHO’s director for environment, climate, and health, called it a “wake-up call.” He stresses that excessive heat is not just uncomfortable but poses significant health dangers. Symptoms can range from heat exhaustion to severe conditions like heat stroke and kidney failure.
According to the WMO, the last decade has seen record-breaking temperatures, and 2024 is expected to be the hottest year ever. In Europe, soaring temperatures of 40°C (104°F) are now a common occurrence. Some regions in Africa and the Middle East can experience unbearable heat, reaching up to 50°C. As an illustration, July’s average temperature in the Mediterranean hit a record 26.68°C this year.
The impact of extreme heat goes beyond health. The WHO states that productivity drops by 2% for every degree above 20°C. Recent data from Switzerland revealed that workplace accidents increased by 7% when temperatures surpassed 30°C during the 2023 heatwave. Distraction and fatigue due to the heat are likely contributing factors.
In response, some countries are taking action. Italy recently enacted emergency measures, allowing workers to pause during the hottest parts of the day. Similarly, construction work in regions like Geneva and Ticino was halted during peak temperatures, a move praised by labor groups. Trade union representative Nico Lutz emphasized the need for construction firms to prioritize worker safety over scheduling pressures.
The report also highlights the vulnerabilities of the elderly and children during heatwaves. Schools are now reassessing their protocols. Germany’s “Hitzefrei” policy allowed for early dismissal when temperatures soared above 30°C in the past, but such extremes are becoming too frequent to justify constant interruptions.
Educators in Switzerland received advice to hold classes by the pool during heatwaves. However, Swiss teachers union head Dagmar Rösler recognized that not all lessons can be conducted in such a setting. She argues for improved infrastructure in schools, such as better ventilation and air conditioning, to create conducive learning environments.
The WHO emphasizes that addressing these challenges requires collaboration among various stakeholders, including governments and health agencies. Rüdiger Krech even suggested reevaluating school uniforms in the UK, questioning whether they are suitable for heat waves.
However, investing in climate resilience remains a significant concern. Many European governments are prioritizing defense spending, leaving adaptation efforts underfunded. Krech warns that neglecting these investments could lead to loss of productivity and increased health risks, ultimately costing more in the long run.
Heat stress is not just a current problem—it’s a growing crisis that needs urgent attention from all sectors, both for the health of workers and the economy.
For further details, visit the WHO report and the WMO website.
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World Meteorological Organization,The World Health Organization,extreme heat,heatwaves,heat stress,health risks,construction workers,Rüdiger Krech,climate change
