Europe’s 2026 Heatwaves Killed 50,391

An estimated 50,391 excess deaths occurred across 854 cities in 30 countries during Europe’s summer 2026 heatwaves, per studies from researchers at Imperial College London and the London School of Hygiene & Tropical Medicine. The figure exceeded the tolls of 2003 and 2022 and stood as the highest heat-related mortality in the studies’ records. Researchers attributed 32,619 of the deaths, about two-thirds, to human-driven climate change. Western Europe recorded its hottest summer, with average temperatures 2.9°C above the 1991–2020 average, and nearly a third of the deaths fell in a severe late-June stretch. Urban areas in the work represented about 40% of the populations studied. A separate analysis estimated an EU GDP reduction of roughly 0.17%, or €17 billion, from April through September. No factual disputes appear among outlets on these estimates. Differences are limited to emphasis, with some coverage giving more weight to the climate share or the GDP cost. No further findings or next steps are indicated.