May heatwaves, deaths, ruined harvests: study of Europe’s summer paints grim picture for the future

EU Copernicus report shows surface air temperatures from June to August were 2.5C above decadal average

May heatwaves, deaths, ruined harvests: study of Europe’s summer paints grim picture for the future

TL;DR

  • Western Europe experienced its worst heatwave on record this summer, with over half the continent facing heat stress above 38C.
  • Surface air temperatures in western Europe were 2.5C above the recent decadal average from June to August.
  • The summer was Europe's third hottest on record, primarily driven by fossil fuel pollution.
  • At least 60% of western Europe experienced temperatures above 30C on 17 days, with 13 days of "very strong" heat stress.
  • Recurring heatwaves caused tens of thousands of deaths, ruined harvests, and shut down power plants.
  • European sea surface temperatures also broke records, and rivers experienced their lowest summer flows in over 30 years.
  • Fire weather conditions in 2026 were the worst recorded, with 680,000 hectares burned by the end of September.
  • Smoke from wildfires released 30% more fine particulate matter than the average over the last two decades.
  • Scientists urge an end to fossil fuel burning and measures to build resilience against climate risks.