From Lunar and planetary meeting.
Solar Forcing of the Abrupt Last Glacial Inception
Pretty solid modeling here, fixed boundary conditions, and no model tuning.
Interesting that they cant increase the Co2, no industry, few plants, so they can't restart the AMOC. Have to do it all with methane. Does that mean it got cold enough to do surface methane snow that could then melt out with just the orbital change?
Scary...