Europe's extreme heat will cost EU economies about €180 billion this year, research published by Triodos Bank has found, with workers in exposed sectors paying the highest price as temperatures erode productivity and threaten livelihoods across the continent.
The analysis says the damage caused by extreme heat and wildfires will cost a cumulative €180 billion in 2026, around 1% of GDP. Against expected EU growth of roughly 1.1% this year, the bloc could end up near stagnation. The estimate traces economic damage through four channels: falling crop yields and dairy output, constrained energy generation, disrupted transport networks, and — the largest effect — collapsing labour productivity.
The Human Cost at Work
Output per worker falls once temperatures pass roughly 25°C to 30°C, with the sharpest losses in outdoor and physically demanding jobs. Office work suffers too, partly because heat degrades sleep and cognition. A cross-country analysis by Allianz, cited in the research, puts the loss at about 3% of output per hour worked for each degree above 30°C sustained over days.
The results aren't a ranking of the hottest countries. Triodos scores each economy on the share of output in exposed sectors, commute times, air conditioning penetration and acclimatisation, then multiplies that by the excess hot days recorded this year. France emerges as worst affected, losing an estimated 1.4 percentage points of growth — enough to tip it into a contraction of about 0.6% from an already weak starting point. The Netherlands loses around 0.8 points, leaving it roughly flat.
Spain and Italy have the most exposed workforces and the most hot days, but decades of adaptation blunt the impact of any single one. Poland, with low air conditioning coverage and little acclimatisation, would be highly vulnerable but has had a cooler summer and should still grow by about 2.9%.
Deaths and Destruction Outside the Economic Model
The human toll sits largely outside these numbers. An estimated 20,400 heat-related deaths occurred across France, Germany, Spain and Italy during the June heatwave alone — two months ago — and valuing the summer's roughly 25,000 deaths in life years lost implies a cost of €1.5 billion to €7 billion. Wildfires had burned over 490,000 hectares across the EU by last week, against a 20-year average of 197,000 according to the European Forest Fire Information System, with France setting a record. Lost ecosystem services from the area burned may add anywhere from €100 million to €4.6 billion.
Lower crop yields and dairy output, plus the food price rises that follow, account for about 0.15% of the economic damage. Constrained nuclear, hydro and thermal generation, weaker solar efficiency and higher wholesale power prices add 0.12% to 0.15%, while disrupted rail, road and waterway capacity add a further 0.15%.
Adaptation Not Enough Without Climate Action
Adaptation could cut productivity losses by around 40%, the research suggests, but not eliminate them, and its authors caution that their estimates rest on conservative assumptions. The bank argues adaptation alone isn't enough and Europe needs stronger action on emissions, pointing to the Commission's move on 17 July — about a month ago — to ease the trajectory of its main carbon pricing scheme as the opposite approach.
Why This Matters:
The €180 billion cost of this summer's heat is more than an economic statistic — it's a measure of policy failure. Workers in agriculture, construction, logistics and manufacturing are losing income and risking their health because Europe has not invested in the adaptation measures that could cut productivity losses by 40%. The 25,000 heat-related deaths represent lives that could have been saved with better public health infrastructure, cooler urban planning, and workplace protections. The Commission's decision to weaken carbon pricing a month ago sends exactly the wrong signal: that short-term political relief matters more than the long-term survival of Europe's social model. Without urgent climate action and a just transition that protects workers and vulnerable communities, these losses will become the new normal — and the EU's promise of shared prosperity will ring hollow.