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    Pink ice in Italy's Alps sparks algae probe

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    Sunday, May 22, 2022
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    Pink ice in Italy's Alps sparks algae probe

    Algae appears as the ice melts rapidly, giving them vital water & air and adding red hues


    Published:  July 06, 2020 14:43 AFP

    1 of 12
    Copy of 249971-01-02-1594031730662
    An aerial picture shows the Presena glacier near Pellizzano, shows pink coloured snow, supposedly due to the presence of colonies of algae of the species Ancylonela nordenskioeldii from Greenland. Image Credit: AFP
    2 of 12
    Copy of 253431-01-02-1594031742139
    Scientists in Italy are investigating the mysterious appearance of pink glacial ice in the Alps, caused by algae that accelerate the effects of climate change. Image Credit: AFP
    3 of 12
    Copy of 249875-01-02 [1]-1594031738664
    Biagio di Maio, researcher at CNR (National Research Council) takes samples of pink colored snow on July 4, 2020 on the top of the Presena glacier near Pellizzano, Image Credit: AFP
    4 of 12
    Copy of 249983-01-02-1594031727672
    There is debate about where the algae come from, but Biagio Di Mauro of Italy's National Research Council said the pink snow observed on parts of the Presena glacier is likely caused by the same plant found in Greenland. Image Credit: AFP
    5 of 12
    Copy of 250020-01-02-1594031754653
    Biagio di Maio, researcher at CNR (National Research Council) takes samples of pink colored snow on July 4, 2020 on the top of the Presena glacier near Pellizzano, Image Credit: AFP
    6 of 12
    Copy of 249952-01-02-1594031733472
    The plant, known as Ancylonema nordenskioeldii, is present in Greenland's so-called Dark Zone, where the ice is also melting. Image Credit: AFP
    7 of 12
    Copy of 250002-01-02-1594031757514
    Normally ice reflects more than 80 percent of the sun's radiation back into the atmosphere, but as algae appear, they darken the ice so that it absorbs the heat and melts more quickly. Image Credit: AFP
    8 of 12
    Copy of 250082-01-02-1594031745451
    More algae appear as the ice melts more rapidly, giving them vital water and air and adding red hues to the white ice at the Passo Gavia, altitude 2,618 metres (8,590 feet). Image Credit: AFP
    9 of 12
    Copy of 249998-01-02-1594031724749
    "Everything that darkens the snow causes it to melt because it accelerates the absorption of radiation," said Di Mauro. Image Credit: AFP
    10 of 12
    Copy of 249874-01-02 [1]-1594031735443
    "We are trying to quantify the effect of other phenomena besides the human one on the overheating of the Earth," said Di Mauro, noting that the presence of hikers and ski lifts could also have an impact on the algae. Image Credit: AFP
    11 of 12
    Copy of 250030-01-02-1594031751807
    Tourists at the glacier lament the impact of climate change. "Overheating of the planet is a problem, the last thing we needed was algae," said tourist Marta Durante."Unfortunately we are doing irreversible damage. We are already at the point of no return, I think." Image Credit: AFP
    12 of 12
    Copy of 250042-01-02-1594031748693
    Elisa Pongini from Florence said she felt the Earth was "giving us back everything we have done to it". "2020 is a special year: terrible things have happened," she said. "In my opinion, atmospheric phenomena are worsening. Climate change is increasingly evident." Image Credit: AFP

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