Technique could assess historic changes to Antarctic sea ice and glaciers

Historic changes to Antarctic sea ice could be unraveled using a new technique pioneered by scientists at Plymouth University.
It could also potentially be used to demonstrate past alterations to glaciers and ice shelves caused by climatic changes, a study published in Nature Communications suggests.

The new method builds on an existing technique, also developed by Plymouth University over the last 10 years, which identified a means by which scientists could measure changes to sea ice in the Arctic.
That has already led scientists to reveal periods when the Arctic was previously ice free during summers, and when sea ice first expanded to is modern extent.