Europe's extreme heat could wipe out nearly all expected economic growth this year, costing EU economies about €180 billion — roughly 1% of GDP — according to research published yesterday by Triodos Bank. With the bloc forecast to grow by just 1.1% in 2026, the cumulative damage from extreme heat and wildfires threatens to push Europe near stagnation.
The figures expose a harsh trade-off at the heart of European climate policy: adaptation costs money, emissions cuts cost competitiveness, and doing neither costs growth. The Commission's decision about a month ago to ease the trajectory of its main carbon pricing scheme suggests Brussels has begun to grasp the dilemma, but the bank's authors argue that retreat isn't enough and Europe needs stronger action on emissions alongside adaptation investment.
The Four Channels of Damage
Triodos traces the economic hit through four channels, three of them quantified as EU averages. Lower crop yields and dairy output, plus the food price rises that follow, account for about 0.15% of GDP. Constrained nuclear, hydro and thermal generation, weaker solar efficiency and higher wholesale power prices add 0.12% to 0.15%. Disrupted rail, road and waterway capacity adds a further 0.15%.
The largest effect, and the hardest to pin down, is labour productivity. 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.
France Worst Hit, Spain and Italy Better Adapted
The results aren't a simple 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%.
Human and Environmental Toll
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 now — 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.
Adaptation Has Limits
Adaptation could cut productivity losses by around 40%, the research suggests, but not eliminate them, and the 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 about a month ago to ease the trajectory of its main carbon pricing scheme as the opposite approach.
Why This Matters:
Europe faces a competitiveness crisis that climate policy has deepened, not solved. The €180 billion heatwave cost is real, but so is the cost of unilateral emissions cuts that drive energy-intensive industry to China and the US while doing little to reduce global temperatures. France's near-contraction shows how quickly weather shocks can overwhelm weak fundamentals. The Commission's carbon pricing retreat signals that Brussels has begun to understand the political limits of climate ambition, but the policy incoherence remains: Europe can't afford to ignore adaptation, can't afford to deindustrialise in the name of emissions cuts, and can't rely on global cooperation that isn't coming. Member states need the fiscal room and regulatory freedom to invest in resilience — air conditioning, water infrastructure, heat-resistant crops — without waiting for EU-wide schemes that arrive too late and cost too much.