Technicians and engineers board ships on Heligoland, Germany's sole high- seas island, to build and maintain wind parks in the North Sea. The noise of construction can damage marine mammals, like porpoises, say environmental activists and researchers from the Hanover Veterinarian College.
- Length: 00:26:00
- Producer: Deutsche Welle
- Series: Special < 30 min. DELETED
- Category: Documentary