Antarctica undergoing severe and long-lasting heat wave

[EMH]

20 miles or less is the difference between totally green and totally covered in ice?

It is all about reaching that point where annual snowfall ceases to fully melt during "summer." Once that point is reached, a land mass the size of Greenland takes 1-2 million years to get covered with glacier head to toe. So, "miles" as you put it really is years, once the "glacier manufacturing point" is reached by tectonic plate movement.

You cannot find one single example of that NOT being the case...

 

[Crick]

It is all about reaching that point where annual snowfall ceases to fully melt during "summer." Once that point is reached, a land mass the size of Greenland takes 1-2 million years to get covered with glacier head to toe. So, "miles" as you put it really is years, once the "glacier manufacturing point" is reached by tectonic plate movement.

You cannot find one single example of that NOT being the case...

If I find someplace where all the winter snow completely melts for one day before new snowfall starts building, you would characterize that as "green"?