Archeologists need to explore underwater ruins more says Graham Hancock

Since a reviewer at Amazon.com has likened my When We Were Gods to books by the great Graham Hancock (how humbling and delightful), I am always interested and intrigued by Mr. Hancock’s observations. He writes about underwater archeological excavations pointing out that since much of the earth was at one time covered by ice, during the Ice Age, many ruins from that time are now covered by ocean water, as a result of the ongoing melting of the ice.

For example, on his website, in his Underworld archives he writes:

But now let’s remember as well that along continental margins and around islands across the world an area bigger than the Unites States of America was inundated at the end of the Ice Age: 3 million square kilometres (an area the size of India) was submerged around Greater Australia alone; another 3 million square kilometres went under around South-East Asia; the Florida, Yucatan and Grand Bahama Banks were fully-exposed off the Gulf of Mexico; huge areas of land were swallowed up in the Mediterranean, the Black Sea, the North Sea and the Atlantic, etc, etc, etc – the list really does goes on and on.
In my view the possibility of a serious “black hole” in scientific knowledge about recent prehistory is plausible, reasonable and worthy of consideration. I therefore propose that the conclusions of modern archaeology regarding the origins and early evolution of human civilisation should be treated as provisional until a comprehensive, global, marine-archaeological survey of continental shelves down to depths of at least 120 metres has been undertaken.