research step 20. May 2021 Indiravadhanan-Anandarajah Step 2 Research, Project Littering (0) Links: https://www.bafu.admin.ch/bafu/de/home/themen/abfall/fachinformationen/abfallpolitik-und-massnahmen/littering.html https://www.igsu.ch/de/littering/was-ist-littering/