While you have posted over and over again about the heat capacity of the oceans and changing currents, you fina absolutely nothing in the way of expert opinion actually supporting your contentions. Meanwhile, all I have to do is ask. I asked Google "What causes the glacial-interglacial cycle?"and got the following results:
Glacial-interglacialcycles are caused by variations in Earth's orbit around the sun,which change the amount of solar radiation that reaches differentparts of the planet's surface each season. These variations arecalled Milankovitch cycles and include three orbital changes:
- Eccentricity: Changes in Earth's orbit around the sun
- Obliquity: Shifts in the tilt of Earth's axis
- Precession: The wobbling motion of Earth's axis
These changes trigger a chain reaction of positive feedbacks that involvethe spread of ice and the release of greenhouse gases. During glacial periods, summers with weaker solar radiation allow large icesheets to form at high northern latitudes. During interglacial periods, more intense summer solar radiation melts the icesheets. When the orbital cycle shifts back, these feedbacks work in reverse to warm the Earth up again.
AI Overview
What causes glacial–interglacial cycles?
Variations in Earth's orbit through time have changed the amount of solar radiation Earth receives in each season. Interglacial periods tend to happen during times of more intense summer solar radiation in the Northern Hemisphere.
Glacial-InterglacialCycles
NationalCenters for Environmental Information (NCEI) (.gov)
https://www.ncei.noaa.gov› sites › default › files
Glacials and interglacials occur in fairly regular repeated cycles.
The timing is governed to a large degree by predictable cyclic changes in Earth’s orbit, which affect the amount of sunlight reaching different parts of Earth’s surface. The three orbital variations are: (1) changes in Earth’s orbit around the Sun (eccentricity), (2) shifts in the tilt of Earth’s axis (obliquity), and (3) the wobbling motion of Earth’s axis (precession).
https://geology.utah.gov/map-pub/survey-notes/glad-you-asked/ice-ages-what-are-they-and-what-causes-them/
Glacial-interglacial cycles are believed to be driven by changes in the orbital pattern of the Earth that has periods of about 20 ka, 40 ka and 100 ka [25].
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/glacial-interglacial-cycle
The next logical item to consider is what factors cause those regular shifts between glacial and interglacial periods.
It turns out that three of the most critical factors are related to the position and orientation of the Earth with respect to the Sun: eccentricity, precession, and obliquity (or tilt).
https://sites.gsu.edu/geog1112/lab-7-glacial-interglacial-cycles/
This list will go on as long as I want to keep cutting and pasting. NO other opinions are expressed. NO one agrees with you. NO ONE.