Low water levels in the Danube River, caused by an extended heat wave and drought, nearly forced the shutdown of Hungary’s only nuclear power plant on Tuesday. Prime Minister Péter Magyar reported that the Paks Power Plant came within millimeters of a total shutdown at 1:30 a.m. before the water level stabilized and rose slightly by morning, allowing the final turbine to continue operating.
The heat wave has impacted energy infrastructure across several European nations. In Romania, authorities used controlled explosions in the river to redirect water toward the country's only operational nuclear plant, following the closure of two other reactors due to low water. While a Bulgarian nuclear plant has maintained its capacity, a cruise ship in the country ran aground near Vidin last week, necessitating the evacuation of approximately 200 tourists.
Beyond energy concerns, the receding river levels have uncovered historical artifacts, including dozens of Nazi-era German warships scuttled in 1944 near Serbia. In France, the retreat of wildfires in the Gironde region led to the discovery of suspected World War II-era unexploded munitions. Meanwhile, Greece continues to fight wildfires in Western Attica, where more than 500 firefighters and multiple helicopters are deployed to contain blazes that have already resulted in five deaths among fire crews.
The scale of the environmental and safety impact is documented by official death tolls and broad health warnings. In Greece, five firefighters have died since last week, including two in a midair helicopter collision on Sunday. Regarding public health, the Italian Health Ministry placed 25 of 27 major cities on "red alert" as of Tuesday, with plans to elevate all major cities to that status by Thursday. In England, heat health alerts were issued for eight regions for the first half of the week, specifically targeting risks to vulnerable groups.
The immediate changes for citizens include restricted movement due to wildfires, as seen in the evacuation of the Gironde region, and health-related behavioral changes prompted by record-breaking temperatures, such as the 82-degree Fahrenheit overnight low recorded in the Czech Republic. Knock-on effects involve disruptions to the tourism and shipping industries as the Danube becomes impassable for some vessels. Authorities in Greece continue to monitor changing wind conditions, while French bomb disposal experts are working to clear newly exposed munitions. Future policy decisions regarding energy cooling systems and wildfire containment resources may be influenced by these events.
What happens next: In Italy, all 27 major cities are scheduled to be under a red alert by Thursday. In Greece, firefighters continue efforts to establish full containment lines in Western Attica while monitoring wind patterns. The UK Health Security Agency's alerts remain in effect for the first half of the week. No specific date for the end of the drought or the full restoration of Danube water levels has been reported.