Worker productivity has dropped by about 2–3% for every degree above 20°C. This is according to the latest report published jointly by the World Health Organization (WHO) and the World Meteorological Organization (WMO).
Extreme heat conditions are directly linked to health risks such as heatstroke, dehydration, kidney dysfunction, and neurological disorders, all of which hinder long-term health and economic security.
About half of the global population, suffers adverse consequences of high temperatures.
Dr Jeremy Farrar, WHO Assistant Director-General, Health Promotion, Disease Prevention and Care, said “heat stress is already harming the health and livelihoods of billions of workers, especially in the most vulnerable communities. The new report and technical guidance, titled “Climate change and workplace heat stress” draws on five decades of research and evidence, highlighting that the health and productivity of workers are severely impacted by rising temperatures.”
WMO reports that 2024 was the hottest year on record, with daytime temperatures recorded at more than 40°C and even above 50°C.
Ko Barrett, WMO Deputy Secretary-General, said “occupational heat stress has become a global societal challenge, which is no longer confined to countries located close to equator – as highlighted by the recent heatwave in Europe. Protection of workers from extreme heat is not just a health imperative, but an economic necessity.”
The report has recommended Governments scale up on education and awareness to health professionals, employers, and workers, to recognize and properly treat heat stress symptoms, which are often misdiagnosed. In addition, to develop occupational heat-health policies with specific plans that consider local weather patterns, specific jobs, and worker vulnerabilities; among some interventions.
Picture: World Insurance Associates