To back up his flooding arguments Hancock turns to the studies of glacial geologist John Shaw. Hancock acknowledges there are uncertainties in the coastline model calculations, although at many points in the book he seems to have temporarily forgotten this and have inferred too much from them. They are however, only perhaps slightly better than drawing similar maps using bathymetric contours based on the sea-level rise curves known fairly well from the dating of coral reefs around the world.
These maps do prove to be useful in different regions for visualizing what the coastline of a particular region may have looked like. Hancock uses output from Milne’s models to show what various coastlines, according to the model, would have looked like at different points in time over the last 20,000 years. This vertical rebound has effected the coastlines positions to varying degrees around the earth after the last ice age. Milne is an international expert at calculating the crustal rebound effects of the earth from having large glaciers melt and having the water be redistributed. To find out what part of the now continental shelves would have been flooded and when, Hancock turns to the computer models of the geophysicist, Glenn Milne. One of the cruxes of Hancock’s argument is that sea-level rise at the end of the last ice age not only covered large areas, but did so at times in large enough amounts and rapid enough so as to inundate and cover the civilizations almost without warning. But Hancock, in his book, takes us to different places around the world to see if he can convince us that evidence may still exist beneath the waves for the remains of one or more of these civilizations. Mainstream archaeologists have typically been arguing against this thesis, saying that we already have discovered enough of who possibly might have existed at that time, and any kind of civilization seems to be ruled out. Virtually all evidence of these one or more civilizations has now been destroyed, and mankind as a result has “lost” important aspects of its early history. His treatise is that the global sea-level rise that accompanied the melting of the continental glaciers at the end of the last ice age flooded over earlier civilizations that were living along the coastlines. Graham Hancock’s latest book, entitled “Underworld, Flood Kingdoms of the Ice Age”, is a long, but interesting 742 pages and contains many full-page color photographs from his expeditions around the world.
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