A severe heatwave currently gripping Europe is posing significant risks to public health, prompting the World Health Organization to issue a stern call for continental leaders to invest in more climate-resilient health services. With temperatures climbing steadily, the record-breaking event has left tens of thousands of residents without electricity across a region that remains ill-prepared for such extreme conditions.
Tedros Adhanom Ghebreyesus, the head of the World Health Organization, emphasized the gravity of the situation on X, noting that the heatwave is forcing schools to close and endangering public health. He highlighted that data indicates European temperatures are rising at roughly twice the global average rate, which increases the frequency and intensity of future heat episodes. The WHO chief urged leaders to prioritize investments in health infrastructure while simultaneously accelerating broader climate action to mitigate the drivers of the crisis.
Scientific consensus suggests that human-induced climate change is amplifying these extremes. A study published this week revealed that the current heatwave is significantly intensified by these factors, noting that temperatures would have been 2 to 4C cooler without them. Consequently, the WHO has issued guidance for the public to distinguish between heat exhaustion—characterized by symptoms like headaches, nausea, and dizziness—and heatstroke, which is a life-threatening emergency marked by seizures, collapse, and confusion.
The agency also offered practical safety tips, recommending the use of electric fans only when temperatures remain below 40C, as they can cause the body to heat up beyond that threshold. For those using air conditioning, the WHO suggests setting thermostats to 27C while using a fan to achieve an effective cooling sensation of 4C, while also emphasizing the importance of staying hydrated by consuming two to three litres of water daily.
The current conditions are reportedly exceeding certain scientific projections. IPCC chairman Jim Skea stated that the heatwave is pushing the limits of what climate models anticipated, with some regional and oceanic impacts surpassing expectations. As France records its hottest day on record and nations from Britain to Hungary issue high-level warnings, the strain on the population is immense. Current estimates indicate that at least 94 million people in Europe are experiencing temperatures exceeding 35C, and nearly two-thirds of the continent’s population, or 350 million people, face maximum temperatures surpassing 30C.
Looking ahead, the WHO notes the historical context of such events, citing that a similar heatwave in 2003 resulted in 70,000 deaths across Europe between June and August. Experts warn that as the planet warms, these intense weather events will inevitably become more frequent, particularly because the hottest days are warming significantly faster than average seasonal days.
