While some archaeologists dig with trowels and shovels, others use a warming planet to their advantage.
Archaeologist holding a c. 1400-year-old arrow, lost reindeer hunting in the high mountains of Oppland, Norway, during the Late Antique Little Ice Age.
PHOTOGRAPH BYJULIAN MARTINSEN, SECRETS OF THE ICE OPPLAND COUNTY COUNCIL
When Lars Pilø, co-director of the Glacier Archaeology Program at Oppland County Council, noticed Norway was experiencing a particularly warm autumn in 2006, the archaeologist turned to the mountains. If climate change was thawing glacial ice, what did that mean for the artifacts that were emerging from the melt? So, starting officially in 2011, Pilø and an international team took to Norway's icy Jotunheimen and Oppland mountains to see what ancient objects they could rescue from the snowmelt.
Over the years, the archaeologists uncovered thousands of artifacts, some of which date back 6,000 years. Since the ice acts like a giant freezer and preserves the objects, the finds look like they could have been uncovered yesterday. (Read: "Alaska's Thaw Reveals—And Threatens—A Culture's Artifacts")
"The moment these artifacts melt out of the ice, they're immediately vulnerable to the elements," says James H. Barrett, a University of Cambridge environmental archaeologist.
The glacier archaeologists detailed their findings in a Royal Society Open Science paper published January 24. Pilø and Barrett are authors on the paper.
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