The removal of the load causes something known as glacial isostatic rebound. The weight of the glacier causes the earth's lithosphere to deform (it squashes it). When the glacier retreats and the load is removed, the earth's lithosphere <span>springs back to its original shape.
The removal<span> of the load causes something known as glacial isostatic rebound. The weight of the glacier causes the earth's </span>lithosphere<span> to deform (it squashes it)</span>