Europe’s deadliest summer claims over 50,000 lives

More than 50,000 people are estimated to have died from extreme heat across Europe this summer, making 2026 potentially the deadliest year on record for heat-related deaths on the continent.

Two peer-reviewed studies published in Nature Health found that nearly two-thirds of the deaths, or more than 32,600, were directly linked to climate change.

Claire Barnes, a climate researcher at Imperial College London and one of the study's authors, said the summer was likely the deadliest on record for heat-related deaths in more than half of Europe.

The findings emerged weeks before world leaders were due to gather in Türkiye for the UN climate summit. A recent UN report warned that limiting global warming to 1.5 degrees Celsius above pre-industrial levels was no longer a realistic prospect.

Europe, the world's fastest-warming continent, experienced unprecedented temperatures from late May to late August. Western Europe recorded its hottest summer on record, with temperatures averaging 2.9 degrees Celsius above the 1991–2020 average. On some days, temperatures in certain countries were up to 12 degrees above normal.

To estimate the death toll, researchers compared temperatures in 854 cities across 30 European countries with those expected in a hypothetical world without climate change. Their analysis estimated 50,391 heat-related deaths, exceeding the tolls recorded during the major heatwaves of 2022 and 2003.

Southern and Western Europe were worst affected, but thousands also died in cooler northern countries, including the United Kingdom. People aged 85 and above accounted for the most deaths, while at least 800 victims were aged between 20 and 44.

Researchers found that climate change's contribution to heat-related deaths has increased significantly. Fossil fuel pollution accounted for around 40 per cent of such deaths at the beginning of this century, compared with nearly two-thirds today.

Raquel Nunes, an associate professor at the University of Warwick who was not involved in the studies, said the findings highlighted how heatwaves could act as a “silent killer”. She also raised concerns about the thousands of estimated deaths among people under 65.

Barnes warned that without a rapid shift away from fossil fuels, Europe would continue to face increasingly intense heatwaves and deadlier summers.

Source: CNN

-AJM