In a first for Italy, pink snow is observed on parts of the Presena glacier, in the north of the country. The phenomenon is caused by algae that develops when snow melts, simultaneously colouring the ice a darker colour. In a vicious circle, the algae in turn increases the rate at which the snow melts by accelerating the absorption of radiation. Biagio Di Mauro, a researcher from the National Research Council is investigating the phenomenon.
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