Ahead of World Water Day, we look at how the Rhine was transformed from a heavily polluted and stinking river into a clean waterway. Today, it supplies over 30 million people with high quality drinking water. But new threats are emerging for Germany's longest artery. (This episode has been republished and updated).
Interviewee featured in this episode:
Tabea Stötter, environmental scientist with the International Commission for the Protection of the Rhine