Eemian

The Hadley Centre has a model for the Eemian which they call the LIG. DOI 10.1038/s41558-020-0865-2.

They are looking at spring and June-July in our Arctic. Apparently pools of water can form inside the ice. These pools - by Rayleigh - lower the glacial albedo and drive up the warming. Until all the ice melts.

This model predicts permanent(ish) North Atlantic Passage by 2035 - admittedly, exactly the answer that "Green New Dealers" want, which new deal proposes to deliver more moneys to the Hadley Centre. So, take all that as you will. Still: as applied to explaining the Eemian, it has more predictive power than the silly and tendentious Hockey Stick models those Epstein clients stuck to us over that second Bush Administration.

Time was when I used to care that scientody was so abused, for the Left; but these times are more of the times when the Right rejects the whole method and views "Science" as some sort of Satanic farce. These are the times when we're being asked to choose abusers. Of these, the soi-disant scientists are at least showing their work. So I am more inclined to them.