When looking at the Earth from afar it appears to be a perfect sphere, but that actually isn’t the case. Because Earth isn’t uniform on all sides due to land masses that shift and change over time, our planet actually wobbles a bit when it spins. Now, a new study by researchers with NASA’s Jet Propulsion Laboratory and several universities and science centers has pinpointed the causes of Earth’s imperfect spin, called “polar motion,” and they found that humans are contributing to it.
The researchers used a wealth of data gathered over 100 years to build mathematical models to trace the causes of the wobble and found that three factors are at play, and mankind is responsible for one of them.
https://finance.yahoo.com/news/earth-wobbling-more-humans-likely-cause-162018838.html
Now were going to have to have a wobble tax to combat global wobbling.