Sewage turns the Blue Danube brown

It’s one of Europe’s greatest rivers. And it glories in the romantic nickname, the Blue Danube. But as it flows into Serbia’s capital, Belgrade, more than a hundred outlets in the city pump raw sewage directly into the river.

A swan makes a nest out of plastic trash near a sewage drain into the Danube close to downtown Belgrade Source: Getty / ANDREJ ISAKOVIC/AFP via Getty Images

This story was originally produced for the BBC World Service