> > Yes, but not all for Greenland and Antarctica. > The ice sheets that covered Canada and slid > down over the upper US, plus the ice sheets > over northern Europe are what you are thinking of. > > See any graph of historical sea levels. >
Most scientist do not accept the idea of 'Growing Earth'. So the constant size of Earth is a fixed dogma, that must not be questioned.
From this the conclusion is drawn, that where is land now there always was land. Hence A region without ice-cover must have lost that by ice sliding down or melting away.
To find out, if other heights of oceans are possible, you may look for apparently marine remains on land.
Possible remains are fossils, coast-lines in mountains or sand in deserts.
For example, the Alps are covered with shells and other sediments. The entire Sahara is full of sand. Atolls are remains of corals and these marine animals.
These and many other hints indicate, that falling sea-levels is an ongoing and large-scale phenomenon. But scientist fail to see this, because it is apparently a forbidden subject and referring to 'Growing Earth' could eventually end an otherwise promising career.
But there is no such thing as 'approved science', since things are either right or wrong and closing the eyes about unwanted facts can spoil the entire afford of research.