[todd8]

The article suggests, that the climate change that we are now concerned about is responsible for the exposure of these artifacts. Actually, the periodic glaciation in the earth history is followed by warming periods, known as the interglacials, during which the glaciers retreat[1]. This melting of glaciers, and the concomitant rise is sea level has been going on for the last 20,000 years of the current interglacial. I feel like this article, perhaps slightly, misrepresents what is happening.

Ötzi[2] was discovered almost 40 years ago, before the accelerated warming due to current climate changes we are concerned about. He was likely uncovered by the inexorable melting of the glaciers that started during the current interglacial epoch, known as the Holocene, and which continues today. This melting explains the small, but constant sea level rise that has been going on for centuries. [3]

During the last glacial maximum, the Laurentide ice sheet covered millions of square kilometers including the area that is currently Canada and northern United States. This ice sheet was up to 4000 meters thick, carved out the Great Lakes, and covered most of North America until 20,000 years ago. [4]

[1] https://en.wikipedia.org/wiki/Interglacial#/media/File:Ice_A...

[2] https://en.wikipedia.org/wiki/Ötzi

[3] https://en.wikipedia.org/wiki/Early_Holocene_sea_level_rise

[4] https://study.com/academy/lesson/laurentide-ice-sheet-facts-...