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Briefly: earth‘s rotational axis had a different tilt, leading to completely different climate and weather systems behavior. Incidentally, before the green saha
by thworp 2y ago
Briefly: earth‘s rotational axis had a different tilt, leading to completely different climate and weather systems behavior. Incidentally, before the green sahara period, the sahara was much larger than today.
- jjtheblunt 2y agoi've read the axis precesses completing a cycle every 24,000 years, so the fraction of ocean vs land in direct sun gradually and continually changes accordingly.