Brussels, Belgium – The summer of 2026 was not merely another exceptionally hot season on the European continent; according to recent scientific estimates and studies, it proved to be one of the deadliest and most impactful. Record-breaking high temperatures were linked to tens of thousands of deaths across various European cities. These alarming figures reveal the growing health toll exacted by severe heatwaves, as global warming and climate change continue to intensify.
Study details and the countries most affected
According to a recent study conducted and published by a team of researchers from Imperial College London and the London School of Hygiene & Tropical Medicine in the journal *Nature Health*, heat-related deaths exceeded 50,000 across approximately 854 cities and urban areas. These cases occurred across 30 European countries during the period from June to August 2026.
The researchers indicated in their findings that approximately two-thirds of these deaths are directly attributable to climate change driven by increasing human activities—foremost among them the burning of fossil fuels. Italy topped the list of countries most affected by this heatwave, with an estimated 13,303 deaths. It was followed by France with 7,268 deaths, Spain with 6,824, and Germany with 6,340. Meanwhile, the death toll in the United Kingdom reached approximately 4,354.
More Intense Heatwaves and Researchers’ Recommendations
The period from June 17 to July 1 was the most impactful of all. During this time, the cities included in the study experienced temperatures that, on average, exceeded typical seasonal norms by approximately 5.3 degrees Celsius. In their conclusion, the researchers noted that the elderly were the most vulnerable to severe health risks. They emphasized the urgent need to strengthen early warning systems and expand green spaces and cooling areas within urban environments. Furthermore, efforts to reduce greenhouse gas emissions must be accelerated. The experts pointed out that these figures are statistical estimates covering specific urban areas and do not represent a comprehensive, final tally of all deaths across Europe.