Europe Faces Unseasonal Heatwave, Breaking Records and Raising Concerns

Western Europe is currently experiencing an unusually strong and early heatwave, with many countries reporting record-breaking temperatures for May. This extreme weather has led to health warnings and tragic incidents across the region, causing concern among experts and the public.

According to BBC News, temperatures in the UK passed 35°C on Tuesday, which is more than 2°C higher than the previous May record before this year. The Met Office described this heat as “exceptional even in the middle of summer, let alone spring.” France is also facing an unprecedented early-season heatwave, with hundreds of heat records broken, Météo-France reports. Ireland's May temperature record has been broken by over 1°C, while Germany, Italy, Spain, and Switzerland have all seen unusually hot conditions for spring, BBC News noted.

The immediate cause of this heatwave is a “heat dome,” where an area of high pressure becomes stuck over Europe, trapping warm air underneath, according to BBC News and NPR News. This hot air has come from northern Africa, as Deutsche Welle (DW) Top reported. However, scientists are clear that human-caused climate change, largely from burning coal, oil, and gas, has made this heat much more intense. The Copernicus climate service states that Europe has been warming by 0.56°C per decade over the last 30 years, which is more than twice the global average, BBC News highlighted. Richard Betts, head of climate impacts research at the Met Office, told BBC News that when heatwaves happen, they are more severe because they are building on an already warming climate.

Many places have seen temperatures not just break but “smash” previous records. For example, The Guardian Environment reported that the UK recorded its highest ever May temperature for the second day in a row, with thermometers hitting 35.1°C in London. This broke the previous May record of 32.8°C, which had stood since 1922. NPR News added that London also experienced a rare “tropical night,” meaning temperatures did not fall below 20°C. In France, the national heat index, which measures the average temperature across the country, reached 24.8°C, surpassing previous records, according to The Guardian World. Météo-France said this heatwave could last through the week, with some areas possibly reaching 39°C.

The unseasonal heat has led to serious consequences. The UK Health Security Agency issued amber health alerts for large parts of England, warning of potential health risks, especially for older people, NPR News reported. The National Fire Chiefs Council also issued a water safety warning after several deaths over a bank holiday weekend. The Guardian Environment and NPR News reported that at least four teenagers died in apparent drownings in UK lakes and reservoirs, and a man in his 60s died trying to save family members in the sea. In France, government spokesperson Maud Bregeon told TF1 television that there have been seven deaths linked directly or indirectly to the heat, with five of these being drownings, according to The Guardian World and NPR News. Many of these drownings happened because people were trying to cool down, and the heatwave struck before lifeguards were fully watching popular beaches, increasing risks, NPR News noted.

Governments are taking action to respond to the heat. In Italy’s Lazio region, authorities have placed restrictions on outdoor work, such as on farms and construction sites, between 12:30 PM and 4:00 PM, The Guardian World reported. This is similar to rules put in place last year, but they are starting earlier this year, DW Top added. In France, 13 of the country’s administrative departments have been placed on an orange high temperature alert, the second highest level, which means people need to be careful and take precautions, The Guardian World stated. This is the first time the national heat warning system has been activated in May since it began in 2004.

Experts warn that such early and intense heat events are becoming more common. Robert Vautard, a climate researcher, told Agence France-Presse that this extension of the heatwave season is a clear sign of climate change effects. He added that similar heat events could eventually be seen in April and October, The Guardian World reported. Peter Thorne, director of the ICARUS Climate Research Centre, told NPR News that there is no doubt heatwave events like this are more likely and more severe due to climate change. He described many of the records being set as “mind-bogglingly crazy.” Christophe Cassou, a climate scientist, told Le Monde that this event has a “one in 1,000 chance of happening at this time of year in the climate of 1979 to 2025” and “would have been virtually impossible in the preindustrial era,” The Guardian World noted. This situation highlights the urgent need for countries to adapt their infrastructure, like schools and hospitals, to meet the conditions of a warming planet, as climate advisers warned the UK government last week, DW Top reported.