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Europe's Worst Heatwave Was 'Impossible' Without Climate Change As Records Fall From Lisbon to Leipzig
A late-June heatwave has shattered records across western and central Europe, with scientists concluding it could not have occurred without human-driven warming. Germany hit 41.3C, France set a national daily average record of 30.0C, and the UK broke its June high three days running. Hundreds of deaths have been reported.
Europe is living through what researchers are calling the most severe and widespread heatwave the continent has ever recorded — and according to the World Weather Attribution (WWA) consortium, it would have been impossible in June without climate change.
The analysis, released on June 26, found that as recently as 2003 a heatwave of this intensity would have been roughly 2C cooler. In 1976, another benchmark year, it would have been 3.5C cooler. The sweltering night-time temperatures now harming sleep are about 100 times more likely than they were in 2003.
"This is the most severe and widespread heatwave to have ever affected this large a region of Europe," said Dr Theodore Keeping of Imperial College London, part of the WWA team. He noted that many capital cities are experiencing not only their hottest June three-day stretch but their hottest at any time of year.
Records topple across the continent
Germany provisionally recorded its highest-ever temperature of 41.3C in Saarbrücken, near the French border. France set a national daily average record of 30.0C on June 24 — beating the mark set the previous day — with the western town of Pulluau hitting 43.8C. The United Kingdom broke its June temperature record for three consecutive days, reaching 36.4C in Somerset. Switzerland logged its hottest-ever June reading of 38C in Basel, snapping a record held for eight decades.
The Netherlands issued its first-ever red alert for heat, warning of "dangerous" conditions. Spain saw Bilbao reach 42.7C, its highest June temperature on record. An estimated 150 million people across the continent faced temperatures above 35C on Friday alone.
A mounting human toll
Spain's MoMo mortality monitoring system linked 212 deaths between Sunday and Wednesday to the heat. In France, three deaths in the Pas-de-Calais region were "likely" heat-related, and several young children died after being left in cars — including an 18-month-old in Marseille and a three-year-old in Paris. Drowning deaths in France climbed to at least 55 as people sought relief in unsupervised waters. London Ambulance Service answered a record 642 Category 1 calls in a single day, its chief executive attributing the surge to "extreme heat."
Infrastructure buckles
Switzerland's Beznau nuclear power plant took both reactors offline because the River Aare reached 25C — too warm to cool them safely. A Eurostar service from Cologne to Paris broke down near Brussels with roughly 400 passengers aboard; three were hospitalised as a precaution. In Paris, authorities banned public alcohol consumption, and major events including Paris Pride and the Solidays music festival were cancelled or postponed as the hospital system reached "saturation." Dutch festival Defqon.1 was shut down mid-event under an unprecedented code-red warning.
A continent warming twice as fast
Europe is the world's fastest-warming continent, heating up at roughly twice the global average, according to the Copernicus Climate Change Service. The WWA scientists found that June is now warming faster than any other month. Nearly half of Europe's 850 largest cities are enduring their worst-ever heat stress — a measure combining temperature and humidity that determines how effectively the human body can cool itself.
The World Meteorological Organization warned of "major impacts" to health, ecosystems, agriculture, and labour productivity, with spokeswoman Clare Nullis stating plainly: "We need to get used to it, unfortunately." The heat is forecast to shift toward the Balkans in the coming days, with temperatures up to 39C expected in Serbia.
UN climate chief Simon Stiell framed the crisis in stark terms: "Climate change is running rampant, caused by the world's addiction to burning coal, oil and gas." The WWA researchers offered a sobering caveat — without urgent action, what feels like an extreme summer today may come to seem relatively cool.
Sources: The Guardian | BBC News | ABC News (Australia) | World Meteorological Organization
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