A punishing drought across Europe is strangling economic activity and forcing governments to adopt extraordinary countermeasures, including underwater detonations to blast open riverbeds and keep critical infrastructure running.
The water crisis has grown severe enough that Romania recently shut down its only operational nuclear reactor for the first time, as falling levels on the Danube River threatened cooling systems at the Cernavoda Nuclear Power Plant. Romanian naval forces conducted controlled underwater explosions this week in Izvoarele village, blasting rocks to divert higher water volumes toward the plant’s cooling systems.
The drought’s economic toll extends well beyond Romania. Hungary’s Paks nuclear plant, which generates approximately 40% of the country’s electricity, faces potential closure due to low Danube water levels. Serbia has already been forced to cut hydropower generation.
Rhine Hits 150-Year Low
In Germany, Europe’s largest economy, the situation has become particularly dire. Water levels on the Rhine River—a vital commercial artery through the continent’s industrial heartland—have plunged to their lowest point since record-keeping began in 1880.
According to official data compiled by ETH Zurich, the water level at Kaub, a critical chokepoint for vessels heading to southern Germany and Switzerland, fell to just 24 centimeters on Monday and Tuesday. That’s far below the 78-centimeter threshold needed for normal navigation. While shipping can continue below this level, barges must carry lighter loads, driving freight costs and low-water surcharges sharply higher. Forecasters expect levels to drop even further by week’s end.
“Major rivers like the Rhine and Danube are critical trade corridors and sources of water for industry and energy generation, so when water levels fall, the effects extend far beyond the waterways themselves,” Liz Saccoccia, water security lead at the World Resources Institute, told CNBC.
GDP Impact and Energy Risks
The economic consequences are already materializing. Stefan Kooths, professor of economics at the Kiel Institute for the World Economy, estimates the low Rhine water levels could reduce German gross domestic product by up to 0.2 percent in the third quarter alone.
“The loss in value added can be roughly estimated at 1 to 2 billion euros in the third quarter,” Kooths said, noting that water levels are unlikely to recover quickly enough to prevent prolonged disruption to transport capacity.
For a German economy that expanded just 0.2% in the second quarter, even marginal losses carry weight. “Given that Germany is growing very little, obviously, if we grow 0.1 instead of 0.2 then this means we lose half of the growth,” Felix Schmidt, senior economist at Berenberg Bank, told CNBC.
Nuclear plants in Hungary, Romania, and France have reduced electricity generation due to insufficient water for cooling systems, while hydropower facilities in Serbia lack the water needed to drive turbines. This raises the specter of blackouts and expensive electricity imports, according to Saccoccia.
A Recurring Climate Challenge
Along the Danube, low water levels have prevented farmers from shipping crops and halted cruise ships from reaching ports like Budapest. Schmidt noted that German companies have likely anticipated these disruptions—climate change has made such droughts a recurring phenomenon—and have responded by stockpiling inventories or shifting to rail and road transport. Still, freight rates are “going through the roof,” he said, adding to inflationary pressures.
The water crisis highlights a broader environmental reality: water scarcity is intensifying across the continent. Around 30% of southern Europe’s population lives in areas experiencing permanent water stress, where demand exceeds available supply.
Schmidt characterized the drying rivers as merely one symptom of Germany’s struggle with the accelerating climate crisis. Recent heat waves have damaged infrastructure and reduced productivity across northern Europe, while wildfires rage through southern parts of the continent.
“It’s affecting the economy in many, many ways,” Schmidt said, pointing to the cascading impacts on energy supply, infrastructure, and overall economic output as extreme weather becomes the norm rather than the exception.
Source: www.cnbc.com — https://www.cnbc.com/2026/08/05/drought-rhine-danube-water-levels-economy.html
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