We could be in the middle of a big shift in how the center of the Earth rotates.
Additionally, the team believes that this could be associated with a reversal of the inner core rotation on a seven-decade schedule. They believe that a previous turning point occurred in the early 1970s and say that this variation does correlate with small changes in geophysical observations at the Earth’s surface, such as the length of a day or changes in magnetic fields.
The authors conclude that this fluctuation in the inner core’s rotation that coincides with some periodic changes in the Earth’s surface system, demonstrates the interactions occurring between Earth’s different layers. However, scientists are debating the speed of the rotation and whether it varies. This new theory is just one of several models explaining the rotation.
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