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WHO warns extreme heat killed over 200,000 people in Europe in four years, issues safety guidelines

WHO says over 200,000 people died from heat-related causes in Europe over the past four years and warns that rising temperatures and El Nino could worsen heat risks this summer.

By Shubham Ganguly

Jun 12, 2026 17:11 IST

The World Health Organization (WHO) Europe office on Thursday said that most of the 200,000-plus deaths from heat-related causes across Europe between 2022 and 2025 could have been prevented. The warning comes as forecasters expect another summer of above-average temperatures across the continent, Associated Press reported.

WHO said extreme heat has become one of the most immediate and deadly effects of climate change. The agency urged governments to strengthen heat action plans and take preventive measures to protect vulnerable populations.

WHO warns of growing heat threat

Dr. Hans Kluge, Regional Director of WHO Europe, said, "The impacts of climate change are a clear and present danger, and its most immediate and lethal manifestation is extreme heat".

"Heatwaves are no longer freak weather anomalies. They are now a recurring crisis inflicting suffering, claiming lives and fracturing our health systems and infrastructure," he added.

WHO called on countries to introduce measures such as cooling centres, flexible work schedules, and additional protections for outdoor workers. Kluge said, "Our goal is clear, and our ambition is bold: zero heat-related deaths".

The warning coincides with the announcement by meteorologists that El Nino has formed in the Pacific Ocean and could strengthen significantly in the coming months.

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WHO issues safety guidelines

WHO advised people to avoid direct sunlight during the hottest hours of the day and limit outdoor activity. The agency recommended spending time in cool environments whenever possible and following official heat alerts.

People have also been advised to stay hydrated, take cool showers, wear loose-fitting clothing, and keep homes cool by closing windows and blinds during the day and opening them at night when temperatures drop.

The organisation warned against leaving children or animals inside parked vehicles, where temperatures can rise rapidly. It also urged people to check on elderly individuals, people living alone, and those suffering from heart, lung, or kidney conditions, as reported by AP.

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FAQs:

1. How many people have died from heat-related causes in Europe in recent years?

More than 200,000 people died from heat-related causes across Europe over the last four years, according to WHO.

2. What has WHO advised people to do during extreme heat?

WHO has urged people to stay hydrated, avoid the midday sun, use cooling spaces and check on vulnerable individuals.

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