Swathes of the Rhine riverbed are exposed, while a few commercial vessels slowly navigate the channel of water that is left in one of Europe's great working rivers. Industry relies on barges to fetch and carry raw materials and finished products to and from the power plants and factories that line the riverbank. Germany’s main industry lobby group has warned that factories may have to limit production or halt it completely because plunging water levels on the river are making it harder to transport cargo. The water is already too low to allow some of the larger vessels through. Others have reduced their cargo to lighten the load so that they sit higher in the water. Experts warn that the low water could significantly damage Germany's economy.