[butlerweave]

so the glaciers are moving back to where they were back then

[antidemoncrat]

Good point. Maybe the campfires then were causing global warming.

[rxsid]

Exactly. A point in fact that will be missed by most.

At the time these ancient artifacts were lost or discarded, there was no abundance of snow or ice on top of them. The climate was probably much like it is now.

Then, centuries later the climate changed and ice and snow accumulated and buried the artifacts.

Now, the area is going back to where it was before.

Back and forth, ebb and flow, changing seasons. It's all perfectly natural and has always been happening.

Our climate isn't static.

[Tallguy]

Glaciers move all the time. The snow at the higher elevations creates new layers of ice, the weight of which causes the ice to ‘flow’ down to lower elevations, and eventually the sea. Look at a fjord in Norway or Alaska. The valleys are ‘U’ shaped from the ice retreating in the summer, advancing in the winter. In winter the ice meets the sea and calves into the ocean.

There was a medieval warm period, so it’s entirely possible that Norse settlements were up on a relatively ice-free plateau. Those settlements could be entombed in ice waiting to be found.