BRUSSELS, June 26 (Parliament Politics Magazine) – The record-breaking heatwave currently gripping Western Europe would have been virtually impossible without human-caused climate change. According to a rapid attribution analysis published by the World Weather Attribution (WWA) group, fossil-fuel emissions are the primary driver behind this historic weather event.
Researchers found that the soaring night-time temperatures experienced this week are now 100 times more likely to occur than they were just two decades ago. The study explicitly ruled out the El Niño warming pattern, confirming that greenhouse gases are solely responsible for the intensity of the heat.
Heatwave Severity
The analysis confirms that this event is the most severe heatwave ever recorded in the region studied. Comparisons to historical data highlight a staggering shift in temperature norms. A similar heatwave occurring in June 1976 would have been approximately 3.5 degrees Celsius cooler than the current event.
The impact of this warming is widespread across the continent. Of more than 800 European cities analyzed, 45 percent have recorded or are forecast to record their highest heat stress levels for late June. Heat stress occurs when the human body becomes unable to cool itself through sweating.
The United Kingdom recently recorded its hottest June temperature on record, reaching 36.7 degrees Celsius in Somerset. Meanwhile, France has dealt with “tropical nights” where overnight temperatures remained above 20 degrees Celsius for more than a week, with some areas recording minimum temperatures near 30 degrees Celsius.

Risks to Public Health
The extreme weather has already triggered significant disruptions across Western Europe. Reports indicate that the heat has caused power outages, forced school closures, and led to the cancellation of various rail and air travel services. Furthermore, cultural landmarks have been shut down as authorities manage the risks associated with the high temperatures.
“We are not doing enough to slow the rate of global warming at the moment. And so as that rate of warming continues, we should expect to see record temperatures being exceeded more and more frequently,” said Clair Barnes, a research associate in extreme weather at Imperial College London, who co-authored the WWA analysis.
Experts emphasize that the health impacts of such heatwaves are only beginning to emerge. The WWA pointed to previous data from the summer of 2022, when a series of heatwaves resulted in more than 60,000 deaths across Europe. The current record-breaking event poses similar risks, particularly because extreme night-time temperatures prevent the body from recovering from daytime heat stress.
Scientific Consensus on Warming
Europe is officially recognized as the world’s fastest-warming continent. Greenhouse gas emissions from burning coal, oil, and gas have increased the planet’s average temperature to approximately 1.4 degrees Celsius above pre-industrial levels from the 19th century, according to the World Meteorological Organization.
The WWA analysis underscores that these extreme thresholds will continue to be broken regularly unless society shifts rapidly away from fossil fuels. As atmospheric patterns trap heat, the frequency and intensity of these events are expected to climb, presenting a mounting challenge for European infrastructure and public health systems.
