David Winner

The heatwave scorching western Europe is the most severe and widespread ever and is only possible due to the climate crisis driven by fossil fuel burning, scientists have said. Almost half of Europe’s 850 largest cities are also enduring their worst ever heat stress, a combination of temperature and humidity, they found. Muggier conditions mean sweating is less effective at cooling the body, making heatwaves even more dangerous. The analysis comes as the UK recorded its hottest ever June temperature on Thursday, 36.7C (98.06F) in Somerset, and much of western Europe recorded a sharp rise in medical emergencies, including some deaths. In summer 2022, more than 60,000 people died due to heat in Europe. The statistical analysis needed to assess the impact of the current heatwave will take time to complete. Nonetheless, the heatwave is certain to exact a heavy toll and is also disrupting lives and livelihoods, with schools closed, hospitals struggling and rail and air journeys cancelled across the continent. The new analysis by scientists from the World Weather Attribution (WWA) consortium shows how rapidly extreme heat is worsening as carbon pollution continues to pile up in the atmosphere. As recently as 2003, a heatwave like the current one in Europe would have been 2C cooler due to the lower level of global heating at the time. In 1976, another famous heatwave year, it would have been 3.5C cooler.