How does earth's orbit affect climate change?

Answer 1

The earth's orbit is relatively stable enough that it does NOT affect any of the changes observed in its climate.

Over geological time, it is more probable that slight changes in the inclination of the earth's axis and spin would cause changes in global climate zones. Periodic changes are also noticed with changes in the sun's energy output, often signified by the number of "sun spots" generated in a year.

A significant change in the earth's orbit would result in drastic changes to its climate, but the masses involved mean that it would require something like a planetary impact to nudge it.

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Answer 2

Asher Cohen

Milankovitch cycles—differences in the axial tilt, eccentricity, and precession of Earth's orbit—affect climate patterns over extended periods of time by changing the quantity and distribution of solar radiation that reaches the planet.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.