![](https://www.nsl.ethz.ch/wp-content/uploads/2019/04/Steigende-Abfallbege.jpg)
Ever since the 1950s, Swiss municipalities have been confronted with the problem of supply and disposal: rising mountains of trash and increasing amounts of waste water required major investments and a co-operation between municipalities.
Ever since the 1950s, Swiss municipalities have been confronted with the problem of supply and disposal: rising mountains of trash and increasing amounts of waste water required major investments and a co-operation between municipalities.