Around 21,000 years ago, ice sheets retreated from the Northern Hemisphere, and great swaths of land were unburdened by the weight of glaciers. Even today, Earth’s shape is still changing as the land rebounds, causing effects like shoreline migration that are observable on human timescales. This process is called glacial isostatic adjustment (GIA), and although the effect is well documented, the details of how Earth is reshaping have long been opaque.
Click here for original story, Models oversimplify how melting glaciers deform land
Source: Phys.org