Extreme heat and drought across Europe are inflicting economic damage in the triple-digit billions of euros, straining power generation, shipping, agriculture and healthcare systems.
Low water levels on the Rhine and Danube have severely restricted river traffic, forcing some nuclear plants to curtail or halt operations due to insufficient cooling water. Crop yield estimates for late-harvested commodities such as maize and sunflowers have already been reduced by 6-7% in July. In Germany alone, more than 10,000 heat-related deaths have been recorded. The continent is also heading toward one of its worst wildfire seasons on record.
The financial toll is mounting. ING estimates that constrained Rhine shipping alone will shave 0.3 percentage points off Germany’s gross domestic product this year. Allianz projects that the two-week June heatwave reduced euro zone economic output by 0.3 percentage points. With euro zone growth forecast at just 1% in 2024, the setback is substantial.
Southern Europe—particularly Spain, France and Italy—faces the brunt of the impact. Allianz forecasts these countries could suffer growth losses of 5-7% by 2030 due to climate-related disruptions. Total costs for 2024 are expected to rise further once wildfires, droughts, floods and the anticipated El Niño weather pattern are accounted for, according to Allianz economist Hazem Krichene.
The economic scarring extends beyond immediate losses. Sehrish Usman, an economist at the University of Mannheim, notes that extreme weather events trigger cascading long-term consequences, with heatwaves, droughts and fires often overlapping in the same regions and amplifying each other’s effects.
Tourism patterns are shifting as travelers increasingly avoid southern Europe during peak summer months. ING economist Carsten Brzeski warns that destinations such as southern Italy and Spain may struggle to attract visitors at temperatures approaching 45°C. The shift could erode revenue for southern European tourism sectors already grappling with climate pressures.
Food price inflation is accelerating in warmer regions, adding to the European Central Bank’s challenge in meeting its inflation targets. Maximilian Kotz of the Barcelona Supercomputing Center estimates that a 2022 heatwave alone lifted euro zone inflation by 0.34 percentage points through higher food prices. Restricted river traffic is also disrupting fuel supplies and widening regional price disparities.
Fiscal pressures are intensifying for vulnerable economies. Allianz projects that climate-related losses could reduce tax revenues by 1.8% in France and 1.3% in Italy and Spain, while forcing higher spending on damage mitigation and climate-resilient infrastructure. Heather Grabbe of the Bruegel think tank criticizes governments for relying on costly, inefficient ad-hoc measures rather than strategic adaptation.
Highly indebted countries such as France and Italy face a dilemma: balancing investments in climate defense and energy transition while confronting investor resistance to further debt accumulation. ING’s Brzeski warns that the combination of rising climate costs and fiscal strain could push sovereign borrowing higher, potentially increasing pressure on the ECB to intervene in bond markets in the event of a selloff.
