Climate change has intensified the recent severe heatwaves across Europe. Multiple countries have issued high-temperature warnings, with Portugal, Spain, France, Italy, and Germany being hit especially hard. In some areas, temperatures have exceeded 40°C. The heatwave has also significantly disrupted economic activity. A new report from Allianz Research and the World Economic Forum forecasts that this year’s heatwave will lead to an average 0.5 percentage point drop in GDP across European countries.
Heatwave Effect: From Farmland to Inflation Metrics
Increasingly frequent extreme weather events are directly reshaping how the world produces, transports, and prices food. On July 9, Bavarian Radio cited forecasts from the state’s agricultural department predicting that farmers in Bavaria will see harvests about 5% below average this year, partly due to spring droughts. In addition, starting around June 20, extreme heat set in, prompting an early harvest. According to growers, grain heads have already begun to turn white — a clear sign of premature ripening.
“The weather this year has once again posed major challenges for farmers,” said Joachim Rukwied, President of the German Farmers’ Association, in an interview with Focus magazine on July 6. He noted that per-hectare yields in Germany have been declining for years. From 2015 to 2019, the average yield was 7.6 tons per hectare, but last year it dropped to 6.7 tons — a decrease of around 12%.
Livestock farming has also been affected, especially milk production. On July 7, German public radio reported that researchers writing in the journal Science Advances found that in hot and humid weather, dairy cows may produce up to 10% less milk. “Withering pastures have also reduced feed availability for livestock, impacting the production of milk and meat,” Focus added. To compensate, farmers have been forced to buy additional feed, driving up their costs.
As farmers suffer major financial losses, the issue of food inflation is becoming more pronounced. The website Ökologisch mobil (“Eco Mobility”) reported that the effects of climate change are now showing up directly in consumer bills. The cost of growing strawberries in Germany has been rising due to climate pressures, and prolonged drought has led to shortages of liquid gold — olive oil.
Research from the European Central Bank shows that the 2022 European heatwave led to an additional 0.67 percentage point rise in food price inflation a year later. The ECB now projects that by 2060, climate-driven heat could push global food inflation as high as 4%.
Infrastructure and Productivity Under Strain
Extreme heat has brought parts of Europe’s tourism industry to a standstill. According to South Korea’s Maeil Business Newspaper, summer is typically peak travel season in Europe, but this year, intense heat, wildfires, and site closures have thrown travel plans into chaos. To protect both tourists and staff from the heat, the Acropolis in Athens now closes daily from 1 to 5 p.m. On July 1 and 2, French authorities temporarily shut down the Eiffel Tower. Other major tourist attractions across Europe have also faced temporary closures or reduced operating hours.
Infrastructure operations have also been affected. Recently, French state-owned utility EDF shut down its Golfech nuclear power plant in southern France. In Belgium, numerous train services were canceled to prevent tracks from overheating. In Germany, the Rhine River saw water levels drop due to dry conditions in June and July, forcing vessels to carry only half their normal cargo weight — a blow to freight transport volumes.
Some local governments have introduced new regulations requiring employers to provide shade, rest breaks, and water to protect workers and sustain productivity. But as Deutsche Welle reports, “the reality is that in most cases, productivity does decline.” Purnamita Dasgupta, a professor and chair of environmental economics at the University of Delhi, explained: “At 35°C, a worker performing at moderate intensity may lose about 50% of their work capacity.” Scaled across an entire economy, that loss becomes a major drag.
Losses Comparable to Strikes
“Heatwaves like the one currently gripping Europe can lead to a sharp drop in economic growth,” reported Austria’s Kleine Zeitung, citing a recent study by Allianz Research and the World Economic Forum. According to the report, heatwaves alone could slash Europe’s average economic growth rate by 0.5 percentage points.
“Heatwaves cripple the economy,” said Allianz Research economist Jasmin Groeschl, noting that overall working hours decline as temperatures rise. “When temperatures exceed 32°C, a single day of extreme heat has the same economic impact as half a day of strike action.” While such losses may be manageable in isolated cases, the frequency and intensity of these events are increasing with climate change. By 2035, Groeschl warned, heatwaves could cost the global economy $2.4 trillion in lost productivity each year.
The latest report estimates that Spain’s GDP could shrink by 1.4 percentage points this year due to high temperatures, with Italy and Greece seeing declines of 1.2 and 1.1 points respectively. Even in relatively cooler northern countries like Germany, the projected 0.1-point hit could completely wipe out the country’s expected 0.1% GDP growth in 2025. The European Central Bank has also warned that the link between heatwaves and key economic indicators—such as inflation and GDP—cannot be ignored.
“A factory doesn’t shut down during a heatwave—it just slows down because machines can’t be cooled. A port that floods twice a year doesn’t close—it just delays shipments. These small slowdowns accumulate over time, quietly eating away at efficiency across regions and industries,” Traders’ Alliance wrote on July 8. Climate change is already putting stress on economic systems: recovery costs from disasters are rising, investment risk profiles are shifting, and infrastructure, agriculture, and insurance sectors are under growing pressure. This is no longer just an environmental issue—it’s a structural economic shift, one that is reshaping how capital is allocated and how we define economic resilience.
“Governments and global institutions are now under mounting climate pressure,” Traders’ Alliance added. “They must act decisively to protect lives, safeguard economic stability, and create opportunities for a green transition. And all of this hinges on cross-border cooperation.”
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