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Danube Drops to Record Low, Stranding Ships and Forcing Nuclear Cutbacks

Human-driven warming has deepened a prolonged drought that narrows navigation, halts tourism, forces reactors to cut output, and leaves little short-term relief.

Boats sit on dry ground as water levels have dropped on the Danube River in Novi Sad, Serbia, Wednesday, July 29, 2026. (AP Photo/Darko Vojinovic)
Boats sit on dry ground as water levels have dropped on the Danube River in Petrovaradin, Serbia, Wednesday, July 29, 2026. (AP Photo/Darko Vojinovic)
People stand on a bank of sand on the Danube River as usually submerged areas are exposed due to extreme low levels of the water following an extended period of drought in Corabia, Romania, Wednesday, July 29, 2026. (AP Photo/Nicolae Dumitrache)
Boats sit on a bank of the Danube River where usually submerged areas are exposed due to extremely low water levels following an extended period of drought in Islaz, Romania, Wednesday, July 29, 2026. (AP Photo/Nicolae Dumitrache)

Overview

  • The Danube has fallen to unprecedented levels, with Hungary’s water authority measuring 23 centimetres in Budapest on Wednesday, the lowest reading on record across much of the river.
  • Navigation has collapsed in sections of the waterway as sandbars and shoals form, a cruise ship ran aground near Vidin and 186 passengers were evacuated after supplies ran out.
  • Countries that use Danube water for cooling have cut nuclear output for safety: Romania shut down units at Cernavoda and Hungary began powering down reactors at Paks because cooling withdrawals are restricted.
  • The drought is hitting local livelihoods and safety, with fishermen stranded, ferry and cargo services suspended, exposed riverbeds revealing shipwrecks and a World War II bomb that closed Budapest’s Margaret Bridge.
  • Scientists say human-caused climate change has amplified the event, forecasts show more heat and little rain, and authorities are using dredging, water limits and traffic controls while warning cross-border economic and energy strains may continue.