I’ve mentioned to people that the temperature at the south pole could go up 20 degrees, and if the moisture content went up as well, and we got a LOT of precipitation where there is little now, we could see a massive increase in the polar ice cap even though temperatures warmed, since the average would still be way below freezing.
Sure, over-simplistic, but it at least makes people think.
I was saying the same thing to people last winter when the mid-Atlantic area was getting such record snows. I have lived in the area since 1961, and winters were a lot colder then. So, hopefully, if there is actual global warming, increased snow in the Antarctic will make up for melting in Greenland.