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Sono 1,1 milioni le persone che in Svizzera risiedono in zone soggette alle inondazioni. E' quanto indicano i risultati di uno studio realizzato dall'Università di Berna, da cui si evince inoltre che gli edifici che possono essere investiti, o almeno lambiti, dalle piene sono 270'000 per un valore nuovo complessivo di 480 miliardi di franchi.
Vallese, Nidvaldo, Vallata del Reno sangallese, nonché l'area attorno a Burgdorf, nel canton Berna, sono tra le regioni dove il problema è più acuto.
Le zone urbane, quella di Zurigo in testa dove ben 4'000 stabili e i loro quasi 80'000 abitanti si trovano in rioni a rischio- sono evidentemente quelle che subirebbero i danni maggiori.
ATS/dg
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