Climate cycling is the natural warming and cooling of the Earth’s atmosphere and oceans. The most easily recognizable change are glaciers. This is especially important in the northern hemisphere.
When glaciers grow in the arctic and above the 47th parallel, this will help to sink both the North American and Eurasian tectonic plates. And this allows for the ocean’s current and more specifically the north pacific current and the Gulf Stream to flow a little more quickly. This I believe allows for something similar to a wind chill effect.
When the North American and the Eurasian tectonic plates sink in the arctic, Newton says there will be an equally opposing effect. This changes the depth of the ocean because the bottom of the seafloor in the arctic will drop. Then when glaciers melt they’ll start rebounding.
And this brings into play the thermohaline circulation which is the Earth’s conveyor system for moving water through all of its seas. It takes about 800 years for it to complete 1 cycle. And it would be the effect that north flowing ocean currents have on regional climate variance. This would have different regions warm and cool differently because of how warm air rising from north flowing ocean currents influences the jet stream. They do have a more basic image on NOAA’s website and the 2nd image is the basic circulation. As anyone can tell, there are large eddies or recirculation gyres not in the “cleaner” image.
With global warming, it seems that it starts when the Moon’s orbit comes closer to the Earth. Glaciers north of 45º helps to change the Earth’s moment of inertia.When angular momentum (spin) is conserved this way, the Earth spins faster. And this allows for the Moon to cause a change in the Earth’s gravity, literally.
This creates a pumping action which can open deep sea vents which allws the waters around Greenland to warm. Currently the Greenland Sea abyss is the fastest warming body of water on the Earth. https://www.sciencedaily.com/releases/2013/09/130925102833.htm
When warm water from deep sea vents (magnitude 6.0 earthquakes seem to open and close deep sea vents) reach the surface then this helps to warm the arctic. As a result, glaciers will start melting. And when they do this allows for tectonic plate rebound. This will slow both the north pacific current and the Gulf Stream. When they slow they will release conserved heat content in the form of momentum = mass*velocity = 1/2mass*velocity^2 = Kinetic Energy.
When momentum decreases then mass is released so that water will reach an equilibrium relative to its momentum and the field (body of water) it is in. An example of this are more intense storms because a body of water is releasing stored energy in the form of convection (water vapor).
And during a warming period the Earth’s spin will slow. As a result it’s gravity will have a slight decrease and then the Moon’s orbit will become more elliptical. And this will allow for the Earth’s own orbit to slightly increase because as the Earth’s spin slows the Sun’s orbital gravity will slightly increase the velocity of the Earth. And in time these patterns will lead to another ice age. When the Earth’s orbital velocity around the Sun has a slight increase then the Sun’s gravity assist https://science.nasa.gov/learn/basics-of-space-flight/primer/ increases in significance. It is this relationship that scientists have missed which would explain why they do not understand natural climate variance.