Saarbrücken
The pupils of the "Freiwillige Ganztagsschule" in Scheidt collected 2381 Grüne Meilen (Green Footprints). To better demonstrate how many of them were collected by energysaving (blue) and how many by eating local Food (red) they put one wooden bead for each Footprint into a plastic pipe and hung them up in the staircase.
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