Earth is a sort of spaceship inside the Milky Way galaxy and a ball with a moving axis circling around the sun. If I am not totally mistaken then the effects of all these planet Earth movements on the climate on Earth are not well understood to this day.
The Milky Way itself travels through space (According to Google: "it's moving at roughly 2.2 million km/h (1.3 million mph) relative to the Cosmic Microwave Background (CMB) reference frame").
Our solar system travels within the Milky Way galaxy. According to Google: "The Solar System travels through the Milky Way by orbiting its center, where a supermassive black hole resides, completing one full lap (a galactic year) in about 230 million years at roughly 240 km/s (828,000 km/h)".
The Earth axis rotates in cycles of about 26,000 years. This axis precession also wobbles meaning the cycle of the axis is not a perfect circle as in geometry and the wobbles are of a shorter duration! These wobbles appear to be called nutation motions.
What about the orbital eccentricity of the Earth relative to the sun? "The eccentricity of Earth's orbit is currently about 0.0167; its orbit is nearly circular." However, "Over hundreds of thousands of years, the eccentricity of the Earth's orbit varies from nearly 0.0034 to almost 0.058 as a result of gravitational attractions among the planets." "The timescale of Earth’s eccentricity variation is ~400,000 years with a superimposed 100,000 year cycle. There is also an unimportant 2.1 million year cycle."(Source)
Then there are the famous Milankovitch cycles that "describe the collective effects of changes in the Earth's movements on its climate over thousands of years."
How do we really know about these cycles and their effect on climate?
Where are we currently in this Milankovitch cycle?
How about the Equatorial bulge (aka oblate ellipsoid) "The planet Earth has a rather slight equatorial bulge; its equatorial diameter is about 43 km (27 mi) greater than its polar diameter, with a difference of about 1⁄298 of the equatorial diameter.". The bulge is not constant over time.
The Earth's rotation is slowing over time. What effect does this have on climate? According to Google: "Earth's rotation is gradually slowing down over millions of years due to the Moon's tidal pull, lengthening our days by about 1.8 milliseconds per century, but recent climate change, especially melting ice redistributing mass, has caused short-term fluctuations, even making the Earth spin slightly faster at times"
Caveat: I did not have the time to do more investigations into the link of all these Earth movements and climate on Earth. However, my impression is that this link has been poorly researched so far. It is easier and more ideological convenient for scientists and socialists and good for business to blame CO2!
Rotation Precession Nutation in obliquity of a planet (Source)
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