WHO Alerts Workers: Extreme Heat Poses Serious Risks as Temperatures Surge

Extreme heat is becoming a serious issue for workers around the globe. The World Health Organization (WHO) and the World Meteorological Organization (WMO) have released a new report that highlights the dangers posed by rising temperatures. As climate change leads to more heatwaves, millions of workers are finding themselves at risk.

This report is significant—it’s the WHO’s first dedicated focus on workplace heat stress since 1969. Rüdiger Krech, the WHO’s director of environment, climate, and health, shared that this isn’t just about feeling uncomfortable; it’s a real health threat. He pointed out that prolonged exposure to heat can lead to heat stress, strokes, and even kidney failure.

Statistics reveal the severity of the situation. The last decade has been the hottest in recorded history, with 2024 expected to break records yet again. In parts of Europe, temperatures exceed 40°C (104°F), while regions in Africa and the Middle East are reaching blistering 50°C. The Mediterranean saw an all-time high this July of 26.68°C. In the UK, this summer is shaping up to be one of the hottest since 1884.

Heat not only jeopardizes health but also hampers productivity. The report notes that for every degree above 20°C, productivity drops by 2%. Switzerland, during its recent heatwave, saw a 7% increase in workplace accidents, linked to heat-induced issues like decreased concentration.

Construction and agriculture workers are among the most affected. Facing severe heat, European countries like Italy have begun taking action. Recently, Italy introduced a decree allowing outdoor work to be paused during extreme heat, following discussions with unions. In Switzerland, construction was temporarily halted in certain areas during the 2023 heatwave, supported by major trade unions.

Nico Lutz of Unia, a Swiss trade union, stressed that companies must prioritize worker safety even if it slows down timelines. “It’s irresponsible to continue working during extreme heat,” he said.

Children and the elderly are also particularly vulnerable to heat. Many countries are looking to adapt schools to ensure safety. In Germany, a system called “Hitzefrei” allows schools to close on extremely hot days, but rising temperatures complicate this. Dagmar Rösler, an education leader in Switzerland, advocates for improved ventilation and air conditioning in schools to create a safer environment.

Krech emphasizes the need for collaboration among governments, employers, and health authorities. Simple changes can make a difference—like using heat-friendly school uniforms. However, he also warns of the risks of ignoring the problem. Investing in ways to protect workers and students from heat is essential. “Ignoring the issue could lead to serious health problems and major losses in productivity,” he cautioned.

As we face these growing challenges, adapting to extreme heat is not just necessary; it’s urgent.

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