‘Dirty snow’ hastens glacial melt in Himalayas

Inter Press Service: Every morning, as Gian Pietro Verza walks up the lateral moraine of the Khumbu Glacier in this Himalayan country's north-east to take measurements, the wind makes colourful prayer flags flutter noisily. That same wind carries soot particles that are causing the snow on the mountains to melt faster. The Italian scientist and mountaineer has been working at the Pyramid International Observatory below Mt Everest since 1987, and has seen the rapid retreat of the glaciers around him even in the last......

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