17-7 ka ago, at the end of the last Ice Age, terrible things happened to the world our ancestors lived in. Great ice caps over northern Europe and north America melted down, huge floods ripped across the earth, sea-level rose by more than 100m, and 25m km2 of formerly habitable lands were swallowed up by the waves. Marine archaeology has been possible as a scholarly discipline for 50 years – since the introduction of scuba. In that time, only 500 submerged sites have been found worldwide containing the remains of any form of man-made structure or of lithic artifacts. Of these sites only 100 are more than 3 ka old.

you’ll definitely need UAV to scour millions of square kilometers

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