They did not rely on one text, but there is only one we know of (and that the cartographers gave as a source) that mentions any kind of channel in Greenland. There are other texts they mention as sources that are lost now and we do not know the contents of.
Hello! Thank you for the explanations.
If so, an angle would be than to focus on "physical expeditions" as in "a team of people going there", etc.
It's absurd to think that no one explored that location, that recently. Could be, some Scandinavian sources.
That is definitely true, but there seems to be no evidence of any impact melting Greenland ice sheets in the last few thousand years. And it would not stay deglaciated after an impact.
Yes, I see the matter: during YD, the snow accumulated at the poles (Mars interaction) - and it remained like that up to today.
It is possible that some very ancient maps that the Medieval cartographers referenced showed an ice-free Greenland from Atlantean times - if the Atlanteans defrosted it like Antarctica.
The idea is that these ancient maps were passed down through Ancient Egypt, the Library of Alexandria and then to Constaninople and Europe. Some of the earliest medieval world maps seem to show Sundaland as it existed during the ice age, instead of the Indonesian islands, for example.
This is very interesting, thank you.
I am not skilled enough so as to say anything, so I approached the matter in terms of the video. We surely end up with the concept that Greenland was green during the minimas - and it would be (perhaps!)
one matter here
I
appreciate (as in "enjoy") the idea that there is a strong emphasis of a modern green Greenland, but am sensitive to a possibility of it being ice-covered at that time.
The ancient maps would make sense.
I suppose that we would need to double-check on the brown dwarf effects, during the minimas, and find out the exact scopes of the ice age.
Another thing that comes to mind is that the YD featured a recombination of land masses. This is something that we had the opportunity to discuss here
Pre "Younger Dryas" Map of Earth and I was wondering if there wouldn't be a possibility, in terms of land mass recombination. I suppose that the only thing would be that the brown dwarf exerted a pressure of some sort, specifically altering Greenland mass.
Sorry that the latter idea is very shallow. It's just a take from an open mind in terms of the basic "cosmic stuff = land mass recombination"

Well - "usually those things happen when ...". But I agree that this may not be the case.
So I understand that your verdict, as of now, is something akin to "not super probable" - "probable" - "but we've got elements pointing out to another direction"?
I would feel, with your post, that it's not excluded but that this would require several elements. What would be those?!
