@Pegi
Earth's axial obliquity shifts between 22.1° and 24.5° in cycles of 41,000 years
Earth's axial wobble toward/away from the Sun is in cycles of 21,000 years
Eccentricity of Earth's orbit shifts between 0 and 0.5 every ~100,000 years, with another longer periodicity of every ~413,000 years
Positive combination of these factors plus the Abedo effect = Ice Age every ~100,000 years.
These are the factors towards natural temperature changes caused by the planet's position. Not an explanation for the spiralling rise in temperatures in the post-war period.
Earth's axial obliquity shifts between 22.1° and 24.5° in cycles of 41,000 years
Earth's axial wobble toward/away from the Sun is in cycles of 21,000 years
Eccentricity of Earth's orbit shifts between 0 and 0.5 every ~100,000 years, with another longer periodicity of every ~413,000 years
Positive combination of these factors plus the Abedo effect = Ice Age every ~100,000 years.
These are the factors towards natural temperature changes caused by the planet's position. Not an explanation for the spiralling rise in temperatures in the post-war period.
