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Il più grande ghiacciaio francese, la Mer de Glace, situato sul lato nord del massiccio del Monte Bianco ha perso tre metri di spessore nel corso dell’ultimo anno. Vale a dire tre volte in più rispetto a quanto registrato sino ad ora. I dati sono stati resi pubblici lunedì dal laboratorio glaciologico di Grenoble.
Le cause
A provocare questa regressione è stato soprattutto il caldo canicolare dell’estate e le scarse precipitazioni fra ottobre e maggio che non hanno permesso un accumulo di neve. Il fenomeno è stato registrato anche in altri contesti, come per esempio sul massiccio dei Grandes Rousses in Savoia. Qui viene stimato che il Saint-Sorlin dovrebbe scomparire a causa del riscaldamento climatico entro il 2060.
AFP/AlesS
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