A race to save history from melting ice

As climate change accelerates the retreat of mountain ice around the world, scientists are finding themselves in an unusual race against time to recover pieces of human history emerging from it.

In Norway’s high mountains, a team of researchers that is part of Secrets of the Ice has become one of the world’s leading glacier archaeology programs, recovering thousands of artifacts that had been locked away for centuries or even millennia beneath ice patches.

The discoveries range from hunting equipment and clothing to items connected to travel and daily life. These items offer rare glimpses into how people hunted and lived daily life in some of Europe’s harshest mountain environments long before modern records existed.

How climate change is speeding up the clock

As temperatures rise, ice that has remained frozen for hundreds or thousands of years is gradually melting away, exposing objects that have been preserved in near-perfect condition. The ice acts like a giant freezer, protecting fragile materials such as wood, leather and textiles that would have otherwise decayed long ago.

Once the ice melts and those artifacts emerge, the clock starts ticking.

Exposure to sunlight, rain, wind and microbes can rapidly degrade objects that spent centuries protected by frozen conditions. Archaeologists often have only a short window to locate and recover artifacts before they deteriorate or disappear altogether.

That urgency has helped give rise to the growing field of glacier archaeology, which combines archaeology, climate science and fieldwork in some of the world’s most remote mountain regions.

Norway has become a global hotspot for glacier archaeology. The Secrets of the Ice team has recovered thousands of artifacts from mountain ice, making the country one of the most productive glacier archaeology regions on Earth. Researchers regularly monitor ice patches during the melt season, searching newly exposed ground for evidence of past human activity.

Interestingly, most of the discoveries are coming from ice patches rather than glaciers. Unlike glaciers, which slowly move downhill and can crush or damage objects in their path, ice patches tend to remain stationary. That stability allows artifacts to remain remarkably well preserved for long periods of time.

The findings are helping scientists piece together how ancient people adapted to changing environments and used natural resources over thousands of years.

Yet the same warming temperatures that are revealing these artifacts are also threatening to destroy them.

For glacier archaeologists, every warm summer can bring new discoveries. It can also mean the loss of irreplaceable pieces of history that have survived since the Stone Age, the Iron Age and the Viking era.

As mountain ice continues to retreat in a warming climate, researchers say the challenge is finding them before time, and the thawing ice erases them forever.