Inland waterways offer a logistics solution for delivering supplies to cities

To transport a tonne of goods 100 kilometres, a truck requires 2 litres of fuel, but a river barge needs only 0.12 litres. It goes without saying that rivers and canals are a far cleaner way of moving goods over short distances. In some, heavily urbanised regions like the Ruhr, the network of inland waterways is favourable to this…