Groundwater depletion causes Earth's axis to shift by 31.5 inches: Study
A recent study has uncovered a significant impact of human activity on the planet: Earth's axis has shifted by 31.5 inches (nearly 80 centimeters) due to extensive groundwater extraction. Published in the journal Geophysical Research Letters, the research highlights how large-scale pumping of groundwater has changed the distribution of Earth's mass, affecting its rotation and contributing to sea-level rise. The shift in Earth's tilt is linked to a sea-level increase of 0.24 inches, according to Popular Mechanics.
Lead researcher Ki-Weon Seo, a geophysicist at Seoul National University, explained that among climate-related factors, the redistribution of groundwater has had the most significant effect on the movement of Earth's rotational pole. The planet's tilt, or axial precession, is influenced by changes in mass distribution. As glaciers and polar ice sheets in Greenland and Antarctica melt, water migrates towards the equator, shifting the planet's balance—a phenomenon comparable to how a figure skater’s spin changes when they alter their body position.
The study examined data from 1993 to 2010, revealing that approximately 2,150 gigatons of groundwater were pumped out during this time, largely for agricultural and human consumption. This large-scale extraction has contributed to a shift in Earth's axis of about 31.5 inches.
Groundwater, which is water stored underground in soil and rock, plays a crucial role in the hydrological cycle. It originates from precipitation that seeps into the earth, replenishing natural aquifers. These aquifers are vital freshwater resources, supporting drinking water supplies, agriculture, and industry. The availability and quality of groundwater depend on natural factors like recharge rates and human activity.
While the 31.5-inch shift in Earth's axis might seem minor, the consequences could be far-reaching over geological timescales. Changes in water distribution can lead to varying sea-level changes across regions, affecting coastal areas differently. Additionally, shifts in Earth's tilt can influence its internal systems, such as the magnetic field, which acts as a shield against harmful solar radiation.
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Fan tries to die by suicide over Nikhil Kumaraswamy's bypoll loss
Bengaluru: Channapatna JD(S) candidate Nikhil Kumaraswamy, who lost the byelection to C.P. Yogeshwar of Congress, on Sunday consoled a fan who reportedly attempted to end his life and requested him not to repeat such acts.
Manjunath, fondly called Abhi, had even penned a letter before taking the dangerous step. Nikhil, who called on Manjunath at the latter’s home in Kudloor in Channapatna, expressed shock and sadness over the incident.
Nikhil Kumaraswamy reassured Manjunath, expressing his support during the difficult time. He told him that he was deeply troubled to learn of this incident and emphasised that he would stand by him. Nikhil also promised to offer assistance in any way he could, including helping him secure employment opportunities in the future, as reported by the Deccan Herald.
He also reminded Manjunath of the importance of his children’s well-being, urging him to focus on their future. “Please, look at the faces of your growing children. Even I have a three-year-old son. The children are young, let us take care of their future also. I will arrange some job opportunities for you. I might not be an MLA but this is a challenge. I will get you employed,” he said.
Nikhil told media persons that he is extremely hurt more by Manjunath’s attempt to die than by his loss in the election. “At 7:30 a.m., we got a message that in Valetoopu, Manjunath had consumed poison yesterday. In Channapatna, our workers and leaders have built this party with zeal. Let the admiration be there in your hearts but if it crosses the line, your families get hurt and we get very pained by it,” he was quoted as saying by the publication.
Speaking of his byelection loss, Nikhil reiterated that the JD(S) had got its traditional votes, but that the votes of a particular community went against the party.
“Deve Gowda gave reservation to a community. We tried our last attempt to take that community into confidence. But they conveyed to us that they do not require us. In future, we will take other communities into confidence,” he remarked in a veiled reference to Muslims.
Nikhil lost the election by a margin of 25,413 votes to Congress candidate C.P. Yogeshwar.
