A recently American Geophysical Union conducted study has found that the melting glaciers have been increasing the shift of earth axis.
Earth Axis Shift
The rotational axis of the planet earth is the axis around which it rotates as it revolves around the sun. The axis virtually is a line connecting the north and south poles of the planet earth. The location of these poles is not fixed as they tend to shift based on several factors. In the last 20 million years, the patterns of the pole has changed (or reversed) in every 2 lakh years to 3 lakh years.
The pole shifting has resulted in the migration of north pole towards Russia. This is also referred to as “Polar Wander”.
The Movement of the Magnetic poles
The magnetic pole was in the Canadian Arctic in the end of 20th century. It then moved 10 degrees moving towards the true north pole. In the year 2001, the movement began to accelerate. In the year 2019, it had crossed the International Date Line. This is the fastest movement of the poles in human history.
- National Aeronautics and Space Administration says that the spin axis drifted about 10 cm per year.
- According to the study, the climate change has increased the glacial melting and this in turn has caused the earth’s poles to move in new directions.
- The shift of the north pole towards the planet east is mainly because of the changes in the hydrosphere. That is, it is mainly due to the way in which water is stored in the earth.
- The study says that between the 1995 and 2020, the average speed of drift was 17 times faster as compared to that happened between the 1985 and 2020.
- The calculation of the shift in poles was done based on the data from GRACE mission (Gravity Recovery and Climate Experiment -joint mission of NASA and the German Aerospace Center).
Earth Axis Shift increases Earth Axis Shift increases