Historically low water levels along Europe's second-longest river have led Hungary and Romania to reduce output at key nuclear plants. Danube tourism and river cargo have also been severely affected by Europe's heatwave.
Hungary and Romania have drastically reduced output at their nuclear power plants due to insufficient water flow from the Danube river, which has sunk to historically low levels.
Hungary's Paks nuclear plant, located 120 kilometers (74.5 miles) south... [4028 chars]