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What do the Milankovitch Cycles do?
they influence the distribution and intensity of solar radiation received by the sun
Drive change between glacial and inter-glacial periods
They work with greenhouse gasses and volcanic activity to cause drastic change
What is eccentricity
It is the shape of the earths orbit around the sun
Changes from more circular to more elliptical over 100,000 years
Linked to glacial and inter-glacial periods
What happens when eccentricity is more elliptical?
there is larger variation in solar radiation between perihelion and aphelion.
This causes more pronounced seasonal differences
What happens when eccentricity is more circular?
Results in less variation in solar radiation, leading to a more stable climate
Note 
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