Überflutungen: Sind Schwammstädte die Lösung?

Bautrupps versuchen, die Bundesstraße 266 bei Bad Neuenahr wieder befahrbar zu machen. Das Hochwasser hat die Strecke unterspült.  Foto: dpa/ Thomas Frey

Wie können Städte geplant werden, um vor Überschwemmungen sicher zu sein? Und macht es Sinn, die zerstörten Orte in Tälern wieder aufzubauen? Ein Experte sagt, worauf es ankommt.

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Dr.-Ing. Klaus Piroth ist Diplom-Bauingenieur.  Foto: CDM Smith
Dr.-Ing. Klaus Piroth ist Diplom-Bauingenieur. (© CDM Smith)

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Kanalisationen anzupassen ist keine Lösung

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Brauchen wir mehr Parks?

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