Europe's 2026 summer has turned climate change from a long-term risk into an immediate macroeconomic event. Record heat and drought — which scientists say are exacerbated by global warming — have simultaneously disrupted power production, river shipping, agriculture and public health. Economists estimate the hit to the region's economy already reaches into the hundreds of billions of euros.
Temperatures broke records in June and July across 14 countries, including a historic 44.3°C in France. The compounding nature of the events is what makes 2026 distinct: heatwaves, droughts and wildfires are occurring at the same time and mostly in the same regions, amplifying each other's impact, according to University of Mannheim economist Sehrish Usman.
Energy infrastructure has been a primary casualty. More than half a dozen nuclear generators have shut or curtailed output because low river levels deprived them of cooling water. In Hungary, the Danube fell so low that the Paks nuclear plant — supplying nearly half the country's electricity — was completely shut down, with Prime Minister Péter Magyar warning of losses up to €137 million. Romania also idled a reactor at Cernavodă for the same reason.
River logistics have seized up. Traffic on the Rhine and Danube, key cargo arteries for industrial heartlands, is severely limited by low water levels, choking the movement of coal, chemicals and grain.