At https://phys.org/print414139220.html … we learn of a project involving Nottingham University intends to map and model the sea floor in regions known to have been flooded and submerged following the end of the Ice Age. This will focus on three regions in particular – the North Sea basin in Europe, Sunda Land in SE Asia, and Beringia in NE Asia (once joined by a land mass to Alaska). No mention is made of the possibility of combining this with a look area now above sea level that may have been submerged in the last Ice Age. It is assumed from the outset that the rise in sea levels was entirely due to global warming – following the melting of a huge ice sheet that was situated across most of the upper portions of the northern hemisphere. The hope is they will hit upon evidence that sea level rise was abrupt – in stages (not one leap but a step like mode of increase). Archaeological exploration of the sea floor is still in its infancy. It is a difficult and hazardous environment, one might say – and you need people prepared to dive into the brine and explore the mud and silt. Not everyone's cup of tea.