The "geologic record" is oxygen isotope BS from Antarctica and documents changes just there, downwind from tectonically active Antarctic Peninsula.
There is the definition of "interglacial"
Here are some characteristics of interglacial periods:
- Temperature: Temperatures are warmer than during glacial periods.
- Ice: Ice sheets and glaciers shrink or retreat
And 97% of Earth ice disprove every "interglacial" since they grew ice straight through them...
AA for way more than 800k years
Greenland for way more than 130k years
The oldest continuous ice core records extend to 130,000 years in Greenland, and 800,000 years in Antarctica.
and hence Greenland and Antarctica, 97% of Earth ice, grew through your bullshit "interglacials" and refuted the entire concept.