Why temperature records are being not only broken but smashed
Western Europe is experiencing unprecedented May heatwaves, with the UK surpassing 35C—over 2C above its previous May record—and France, Ireland, Germany, Italy, Spain, and Switzerland breaking multiple temperature records. Scientists attribute the extreme heat to a 'heat dome' phenomenon and human-caused climate change, with Europe warming at twice the global average rate over the past 30 years.
Western Europe is facing an extraordinary early-season heatwave, with temperatures in the UK exceeding 35C on Tuesday—more than 2C above the previous May record. The Met Office described the heat as exceptional for spring, while Friederike Otto, a climate scientist at Imperial College London, called it 'absolutely astonishing.' Similar record-breaking temperatures have been reported across France, Ireland, Germany, Italy, Spain, and Switzerland. The heatwave is caused by a 'heat dome,' where high-pressure air traps warm air over the region. However, scientists emphasize that climate change—driven by fossil fuel emissions—has intensified the heat. Europe has warmed by 0.56C per decade since 1990, more than double the global average, according to Copernicus, making heat extremes far more severe. Records are not just being broken but 'smashed,' with margins far exceeding typical expectations. Erich Fischer, a climate researcher at ETH Zurich, noted that in a stable climate, records would only shift slightly over time. Instead, the rapid warming means even past heatwaves would now shatter records. Richard Betts, head of climate impacts at the Met Office, stated that these extremes align with warnings from decades ago but are arriving sooner than predicted. The heatwave is part of a broader pattern, with 30% of US weather stations setting new March records earlier this year. Robert Rohde of Berkeley Earth described the western US record margins as 'utterly absurd.' Globally, temperatures are now 1.4C higher than late 19th-century levels, with projections suggesting up to 3C warming by 2100 if current trends continue. This heatwave underscores the accelerating impacts of climate change, with scientists warning of more extreme events in the future. The rapid warming in Europe highlights the urgent need for climate action to mitigate further temperature rises.
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