Award ceremony
Soil scientist Dr. Melanie Braun and Prof. Dr. Klaus Töpfer, who gave his name to the Klaus Töpfer Research Prize of the University of Bonn.

Links
- https://www.inres.uni-bonn.de/en/about/news/how-much-plastic-do-soils-contain/preisverleihung-1.jpeg/image_view_fullscreen
- https://www.inres.uni-bonn.de/en/about/news/how-much-plastic-do-soils-contain/preisverleihung-1.jpeg/@@download/image/Preisverleihung-1.jpeg