Destroying dams could seem like virtue-signalling Luddism: Electricity has to be produced one way or another. And hydro has long been perceived as a relatively “clean” source of energy and electricity, at least compared to oil and coal. But rivers can recover their former dynamism if at least some dams are taken away and if they are allowed to flow naturally again, according to Eichelmann.“It’s simply a question whether we want to have rivers in the future, or not, he said.