Those who study climate with out looking at anything above 100 Km, are all about temps, pressures, and lately radiative balance. Those with a focus on the solar activity out to the orbit of the earth are into internal dynamo theory. Those with a focus on the interaction of the solar system with an eye to the focus on SSB with the planets driving the solar cycles are getting closer.
The real prospective that will find answers will be called Astrology, or electric sun, not because they are valid but because if one considers the modulation of the galactic magnetic fields by the local effects of the spiral arms and the density/compression waves they are causing the movement of the spiral arm evolution to progress, as a background through which the solar system is traveling, they will be shoved into those categories.
Once a viewpoint is taken in the long term context of the magnetic field interactions of the heliopause as it moves through the changing terrain of the spiral arms it encounters, at the same timing as we experience interglacial periods, then a proper perspective can be taken on what drives both climate and the solar dynamics, as well as the movement of the planets and sun responding to changes in magnetic flux into and through the heliosphere. This can be extrapolated from the effects seen on smaller scales by the magnetospheres of the planets IMHO.
Suspended on the greater galactic magnetic fields, the bubble of the heliosphere is a ball of conductive ions pushed out by the solar wind, by expansive cooling as they move toward the heliopause where they are deionized and condense out as matter, to form the Oort clouds and precipitate back into the inner solar system as comets. The accumulation of the ferrous compounds that have magnetic conduction condenses out into the planets, the galactic magnet fields passing through the entire solar system spreads out to pass evenly through every atom that has magnetic conductance.
The forces and dynamics of homopolar generator mechanics are spread out through the entire solar system, so the placement and movement of the relative magnetic conductance of the planets as they progress around the sun determines the density of the magnetic fields and current induced effects that effect the spin orbit coupling of the entire system. The continual shifting of the COM of the sun around the SSB is a result of the combined gravitational, tidal, and the magnetic inductive effects.
The gravitational effects are inverse squared, the tidal effects are inverse cubed the distance involved, the magnetic field strength is a constant application of the sum total of the magnetic conductance of the area of the galaxy the solar system is passing through, constantly spread out through the magnetically permeable/conductive materials of the complete solar system. At all times will there be a sharing of the spin, rotational, and declinational effects of the differential magnetic couplings between the center of the galaxy, and all of the components of the solar system.
The planetary bodies with the highest amounts of magnetically permeable material (whether above of below the Currie point or not) will experience the highest amounts of homopolar driving effects, the inner planets are gravitationally and magnetically bound together in a resonate pattern with the sun as the center of their reference frame, due to the harmonic coupling they have stabilized into resonance with.
The outer planets have their own patterns of resonance that is more driven by the differential magnetic inductance effects of the greater galactic fields inducing surges in spin orbit coupling into them when they are closer to the galactic center than the sun, and energy will be pulsed more into the sun and inner planets, when the outer planets are farther away, giving rise to the tilt of their orbital planes in respect to the equator of the sun. When the outer planets are closer to each other, then the effects are amplified by the current enhancement, the ~20 year period of the Saturn Jupiter synod conjunctions progress around in ~120 degree increments, from opposite the galactic center to on the same side as the galactic center, when they have a synod conjunction in line with the galactic center not only is the rotational inductive effect increased but the Z axis motion is inductively enhanced as well. It is this enhancement of the z axis modulation that shows up as the ~60 year cycle in climatological data bases. But as there is a slow procession in the point of Synod conjunctions (not exactly 120 degrees apart) the effects comes in and out of sync over long periods of time modulating the strength of the ~60 year periods effects.
As the solar system barycenter moves ahead and behind the COM of the sun on the z axis it also modulates the strength of the magnetic fields inducted into and out of the sun, the resultant increase or decrease in total flux of containment magnetic strength of the internal dynamo that powers the sun varies magnet loops of the containment rupture out of the sun as sunspots. The total AC signal is the Hale cycle of ~22 years, with the polarity reversal occurring at the same time as the sunspot maximum, so the sunspots are 90 phase shifted to the magnetic cycle strength peaks and we have minimum spot activity at maximum containment field strength/stability. This is why we have more power output from the sun when the containment weakens (more sun spots intensity) and lets it get out.
Both the sunspot number produced and the magnetic flux inductions into the planetary components are the result of the changes in the suns share of the total magnetic flux passing through the whole solar system. The whole solar system is being driven externally, explaining both the synchronicity of the effects and the mechanics needed to access the true drivers of climate.
This arguing about which horse on the carousel is the fastest is nonproductive.