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Il fenomeno è globale, ma in Svizzera è particolarmente visibile: in 50 anni nella Confederazione sono scomparsi 700 ghiacciai su 2’000. Il Morteratsch, in Engadina, in un secolo ha perso oltre 2 chilometri, un quarto della sua lunghezza originale. “Anche per degli scenari molto ottimisti, perderemo probabilmente il 60% di tutti i ghiacciai in Svizzera“, afferma il glaciologo Daniele Farinotti.
La perdita si misura non solo in termini ambientali, ma anche economici, sia in quanto costituiscono un “valore di esistenza”, come spiega l’economista dell’USI Barbara Antonioli Mantegazzini, sia per quanto riguarda l’impatto su riserve d’acqua e turismo. Tanto che crescono le località elvetiche che adottano misure concrete, come i teloni geotermici, per proteggere i ghiacciai.
L’argomento sarà approfondito dal nostro magazine economico Tempi moderni, in onda alle 21.55 su RSI LA1
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