Foto: "<a href="https://ccnull.de/foto/aerial-shot-of-a-single-wind-turbine-on-a-green-hill-in-munich-froettmaning-with-houses-in-the-background/1039042" target="_blank">Aerial shot of a single wind turbine on a green hill, in Munich-Fröttmaning, with houses in the background</a>" von <a href="https://ccnull.de/fotograf/marco-verch" target="_blank">Marco Verch</a> via <a href="https://ccnull.de" target="_blank">ccnull.de</a> - <a href="https://www.flickr.com/photos/160866001@N07/48210331616/" target="_blank">Bildquelle</a>, <a href="https://creativecommons.org/licenses/by/2.0/de/" target="_blank">CC-BY 2.0</a>