View Single Post
  #2  
Old 11-09-2016, 11:25 PM
intj123 intj123 is offline
Suspended
Guide
Join Date: Jan 2016
Posts: 413
  intj123's Avatar
The 'tilt' of the earth changes on it's own, it's called precession.
I believe it takes 26,000 years to complete the cycle.

The cause of precession from google
The torque which causes the Earth to precess comes from the gravitational pulls of the Sun and the Moon which try to pull the Earth's rotation axis toward the perpendicular to its orbital plane.
Reply With Quote