How do the Milankovitch cycles affect climate change?

Question
Answer 1

They clearly have little impact, or climatologists would have seen a repetitive 26 000 year cycle in their data as the fundamental period, they have not.

I think it is true that Milankovitch cycles have some impact on climate, but it is dwarfed (currently) by human induced climate change due to #CO_2#, methane and other emissions.

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Answer 2

The Milankovitch cycles can have a significant effect on climate change.

The Earth's orbit is currently almost circular. There is only a #3%# difference between the distance from the Sun at perihelion and aphelion. The Earth's orbit gets more and less elliptical over a period of 100,000 years. When the orbit is more elliptical the seasons are more extreme.

The axial tilt varies between #21.5^@# and #24.5^@# over a period of 41,000 years. It is currently at #23.5^@#. The greater the tilt, the more extreme the difference between seasons.

However, human production of #CO_2# has overridden these effects in recent year and needs to be stopped to prevent major climatic changes.

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Answer 3
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