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<blockquote data-quote="timetraveller" data-source="post: 140412" data-attributes="member: 456"><p>It got warmer. There have been lots of Ice Ages. it is thought by many that the cause is the Milankovitch Cycles.</p><p><strong>What Are the 3 Milankovitch Cycles?</strong></p><p></p><ol> <li data-xf-list-type="ol">Orbital eccentricity. Earth revolves around the sun in a roughly circular orbit. But roughly every 100,000 years, its orbit becomes more eccentric.</li> <li data-xf-list-type="ol">Obliquity variation. The next piece of the puzzle is obliquity. Right now, Earth’s obliquity is 23.5°. ...</li> <li data-xf-list-type="ol">Axial precession. Axial precession is the movement of the rotational axis of Earth. ...</li> </ol><p>There is a lot of reading to do if you want to know more.</p></blockquote><p></p>
[QUOTE="timetraveller, post: 140412, member: 456"] It got warmer. There have been lots of Ice Ages. it is thought by many that the cause is the Milankovitch Cycles. [B]What Are the 3 Milankovitch Cycles?[/B] [LIST=1] [*]Orbital eccentricity. Earth revolves around the sun in a roughly circular orbit. But roughly every 100,000 years, its orbit becomes more eccentric. [*]Obliquity variation. The next piece of the puzzle is obliquity. Right now, Earth’s obliquity is 23.5°. ... [*]Axial precession. Axial precession is the movement of the rotational axis of Earth. ... [/LIST] There is a lot of reading to do if you want to know more. [/QUOTE]
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