A new study reveals that climate change has now invisibly shifted the earth’s axis of rotation. As per the latest study in the American Geophysical Union’s journal, Geophysical Research Letters, melting glaciers due to global heating is the cause of the shift in the movements of the earth’s pole which was occurred in the 1990s
The movement of the South and the North Pole isn’t constant. The earth’s axis periodically moves due to a number of factors, including the way water is distributed on the Earth’s surface. Melting glaciers redistributed plenty of water which cause the direction of “polar wander” not only to turn eastwards but also accelerate as per the research study
“The faster ice melting under global warming was the most likely cause of the directional change of the polar drift in the 1990s,” said Shanshan Deng, a researcher at the Institute of Geographic Sciences and Natural Resources Research at the Chinese Academy of Sciences and the University of the Chinese Academy of Sciences, one of the study authors.
The scientist also found that, in 1995, the direction of “polar drift” shifted from southward to eastward. The average speed of drift from 1995 to 2020 has been increased by 17 times from the average speed which was recorded from 1981 to 1995
Vincent Humphrey, a climate scientist at the University of Zurich who was not involved in this research, said it disclosed how human activity can directly impact the changes to the mass of water on land
“It tells you how strong this mass change is – it’s so big that it can change the axis of the Earth,” he said.