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A study reveals that excessive groundwater extraction has caused a significant shift in Earth's rotational pole, highlighting the profound impact of human activities on the planet's dynamics.

The research from Seoul National University, indicates that between 1993 and 2010, the Earth's pole drifted approximately 80 centimeters eastward due to groundwater depletion.

The study estimates that humans have pumped out around 2,150 gigatons of groundwater during the study period.

This massive extraction has contributed to a sea level rise of about 0.24 inches and altered the distribution of Earth's mass, leading to a drift of the rotational pole at a rate of 4.36 centimeters per year.

Polar motion, the movement of Earth's rotational axis relative to its crust, is influenced by changes in mass distribution across the planet. The redistribution of groundwater from aquifers to oceans has emerged as a significant factor affecting this motion.

Regional Impact and Implications

The research identifies western North America and northwestern India as key regions where significant groundwater extraction has occurred. These mid-latitude areas play a crucial role in influencing polar drift due to their geographical location and the volume of water extracted.

While the current shift in Earth's tilt is not enough to affect weather patterns or seasons immediately, researchers caution that continued groundwater depletion could have long-term climatic impacts.

 

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