A pre-Viking woolen tunic found beside a thawing glacier in south Norway shows how global warming is proving something of a boon for archaeology, scientists said on Thursday.
The greenish-brown, loose-fitting outer clothing — suitable for a person up to about 5 feet, 9 inches tall (176 centimeters) — was found 6,560 feet (2,000 meters) above sea level on what may have been a Roman-era trade route in south Norway. Carbon dating showed it was made around the year 300.
"It's worrying that glaciers are melting, but it's exciting for us archaeologists," Lars Piloe, a Danish archaeologist who works on Norway's glaciers, said at the first public showing of the tunic, which has been studied since it was found in 2011.
A Viking mitten dating from the year 800 and an ornate walking stick, a Bronze Age leather shoe, ancient bows, and arrowheads used to hunt reindeer are also among 1,600 artifacts found in Norway's southern mountains since thawing accelerated in 2006.
One ancient wooden arrow had a tiny shard from a seashell as a sharp tip, revealing intricate craftsmanship.
The 1991 discovery of Otzi, a prehistoric man who roamed the Alps 5,300 years ago between Austria and Italy, is the best-known glacier find. In recent years, other finds have been made from Alaska to the Andes, many because glaciers are receding.
The shrinkage is blamed on climate change, stoked by human-caused emissions of greenhouse gases from burning fossil fuels.
The archaeologists said the tunic showed that Norway's Lendbreen glacier, where it was found, had not been so small since 300. When exposed to air, untreated ancient fabrics can disintegrate in weeks because of insect and bacteria attacks.
"The tunic was well-used — it was repaired several times," said Marianne Vedeler, a conservation expert at Norway's Museum of Cultural History.
A view over a valley in the mountains of south Norway where a 1,700-year-old loose-fitting tunic was found.
The tunic is made of lamb's wool with a diamond pattern that had darkened with time. Only a handful of similar tunics have survived so long in Europe.
The warming climate is having an impact elsewhere.
Patrick Hunt, a Stanford University expert who is trying to find the forgotten route that Hannibal took over the Alps with elephants in a failed invasion of Italy in 218 B.C., said the Alps were unusually clear of snow at the level of 2,500 meters last summer.
Receding snows are making searching easier.
"I favour the Clapier-Savine Coche route (over the Alps) after having been on foot over at least 25 passes including all the other major candidates," he told Reuters by e-mail.
The experts in Oslo said one puzzle was why anyone would take off a warm tunic by a glacier.
One possibility was that the owner was suffering from cold in a snowstorm and grew confused with hypothermia, which sometimes makes suffers take off clothing because they wrongly feel hot.