Starting with the origin of Switzerland's abundant water resources, the high amount of precipitation in the Alps, the web portal explains relevant hydrological, water management, social and environmental aspects of water.more

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Horizonte 80

Alles Darwin oder was? - Spielend lesen, aber wie? - Knickfestes Getreide für Äthiopien - Stadtlandschaften unter dem Boden

Horizonte 80

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