Economists warn Europe’s wildfires and heatwaves are becoming a macroeconomic threat

Europe is facing its third heatwave in six weeks as wildfires rage across France, Spain and Greece, prompting economists and insurers to warn that extreme summer weather is evolving from a seasonal nuisance into a structural macroeconomic threat.

Wildfires have burned 300,000 acres across France and Spain, forcing the evacuation of more than 300,000 people, according to CNBC. French Finance Minister Roland Lescure said on Monday that the fires were "like a clap of thunder" for the local economy. Bloomberg reported on Wednesday that the insurance industry is bracing for losses tied to the extreme heat season, with the combined forces of climate change and El Niño fueling fires, droughts and other catastrophes.cnbc+1

The Macro Cost of Heat

"This is really a big economic challenge," Georg Zachmann, a senior fellow at Bruegel specializing in energy and climate policies, told CNBC on Tuesday. ING ↗ 7.47% Global Head of Macro Carsten Brzeski warned that "heatwaves have quietly graduated from 'weather event' to 'macro variable,'" citing rising costs for cooling, healthcare, emergency infrastructure, transportation and agriculture.cnbc

A 2025 joint paper from the University of Mannheim and the European Central Bank found that heatwaves, droughts and floods during the summer of 2025 cost the European economy roughly 0.3% of output, with accumulated damage potentially reaching 0.8% by 2029 due to lost productivity, supply chain disruption and depressed tourism revenue. Western Europe recorded its hottest June ever this year, according to the World Meteorological Organization.cnbc

Insurance Losses Mounting

Insurers face rapidly escalating exposure. Allianz Commercial noted in June that insurance companies paid out $56.3 billion in wildfire losses during the 2010s, six times more than the $8.7 billion paid in the 2000s. Zachmann pointed to the 2025 Los Angeles fires as a reference point, noting direct costs of $40 to $60 billion and indirect costs estimated at $300 billion.cnbc

Landscape and Climate Combine

Stefan Doerr, a professor of wildland fire science at Swansea University, told CNBC that decades of agricultural land abandonment have left parts of southern Europe with dense, highly flammable vegetation more vulnerable during extreme heat. "This is man-made," he said. "The way the landscape looks now is entirely artificial". EU countries have already surpassed 2025's record wildfire season, with temperatures remaining well above historical averages.benzinga+1