Why Earth’s Inner Core May Be Slowing Down
Scientific AmericanAPR 2023
Though there is still much debate to be had on the topic, Song and Yang's research is very valuable. While some believe that the changes in core rotation and direction are happening even more frequently, we know for certain that data on seismic monitoring has yielded much better results than in previous years. The more scientists learn, the more exciting the field gets.
Song and Yang's research is flawed, and includes misinterpretations of how to measure and view seismic signals. Their results provide an inconsistent explanation of what we know to be true. More data needs to be collected to reach a consistent and scientifically agreed upon conclusion surrounding exactly which parts of the core are rotating and why changes in that rotation occur.