Perched next to a river near a glacier's edge in Greenland, Penn biogeochemist Jon Hawkings and Jack Murphy, senior research coordinator in Hawkings' lab, scooped up samples of frigid meltwater, careful to seal the bottles quickly to minimize any chance of contamination. The two spent nearly a month in Greenland this past summer. The fieldwork, while scenic, isn't glamorous. "You're standing in front of a massive glacier submerging your hands in zero degrees Celsius water; it's freezing and windy and dusty," Murphy says. "We have to get creative to get clean samples."
https://www.lifetechnology.com/blogs/life-technology-science-news/from-glacier-ice-a-wealth-of-scientific-data
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