Destroyed crops, riverbed cyclists and a ‘Rock of Starvation’: how drought has devastated the Danube

The Guardian travelled 100 miles along the EU’s longest river, where some residents are struggling to secure drinking water For centuries, the rock was seen as a warning. When it began to emerge from the Danube, beneath Gellért Hill in Budapest, it meant the river had fallen so low that floating mills could no longer operate, crops were probably failing, and hunger would almost certainly follow. That is why, in the Hungarian capital, where over time the boulder became little more than a legend, it was named Ínség-szikla – the Rock of Starvation. Today, amid record-low water levels on the Danube, the rock has not only emerged from the water, but surfaced almost in its entirety, along with the sandy riverbed on which it rests, astonishing geologists and government scientists sent to examine it. And, much as the rock was said to warn, Hungary is now facing an unprecedented energy crisis that has forced the country to shut down all but one of its Danube-cooled nuclear reactors for the first time in 44 years...