[Theophilus]

from reading the article, it seems like the scientists are saying they believe the core has been rotating eastward slightly faster than the rest of the 3rd rock and now it may be rotating slightly slower, still eastward) than the rest or lagging, which is not really as radical as rotating in the opposite direction or “reversing”. It's apparently only a relative deceleration.

[rarestia]

They said the rotation of the core came to a stop more recently. Sounds like recent measurements indicate a counter rotation now.

[ByteMercenary]

That is what I got from the details also. The eastward rotation has had a slight change on velocity, not a complete reversal in rotational direction.

It would be hard to imagine a force that could reverse a core’s rotational direction that would not have a noticeable effect on the surface of da Erf.

[P.O.E.]

That makes more sense.

[scrabblehack]

That would be consistent with the magnetic north pole moving (which it does), no?