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The pole melts and slows down the Earth's rotation. What effect will the method of measuring time have?

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By parm maan

Climate change directly affects Earth's rotation, according to new scientific research (Illustrative Image Infobae)

He Global warming which leads to increased melting of the Earth's poles, makes our planet rotate more slowly, which directly affects time that we measure accurately.

That is, melting water goes to the ocean and raises the sea level, produces mass transfer from the poles to the equator which slows down the Earth's rotation speed, according to the study's scientists published in a journal Nature:

So one day In a couple of years, everyone in the world will lose a second of their time. The hours and minutes that dictate our days are determined by the Earth's rotation. But that rotation is not constant. can change slightly depending on what is happening on Earth's surface and in its molten core.

Scientists have discovered that the rotation of the Earth's inner core also changes time (Neblis)

These almost imperceptible changes sometimes mean that The clocks of the world must be set to “leap second”. which may seem small, but can have a huge impact on computer systems, the Internet, and millions of global business operations.

Research backs it up the disappearance of ice in Greenland and Antarctica will appear behind an unusual phenomenon. it affects the accuracy of clocks and in particular Coordinated Universal Time (UTC).

Text: signed Dr. Duncan Agnew of Geology, The University of California assures that UTC, the standard by which clocks and time are set around the world, may require: “leap second” (or extra second) “negative three years later than it would have been if the thaw had not occurred”. And it's worth remembering that since 1972, these extra seconds have been added, one or, in some cases, even two years, to Coordinated Universal Time to keep time in sync with the Earth's rotation.

The Wettzell ring laser is one of the instruments that best measures Earth time (ASTRID ECKERT/TUM)

Research use of Agnew a mathematical model to analyze the effect of variations in the planet's angular momentum on the global “clock”. “The angular velocity of Earth's mostly liquid core is decreasing at a constant rate, which has increased Earth's angular velocity (to conserve angular momentum),” he describes in the study. This effect has resulted in only a “few” leap seconds being added to UTC in recent decades.

However, Agnew, by extrapolating the fluctuations of the Earth's rotation into the future, was able to predict that: In 2026 UTC will need to add a negative leap second. But the problem is the planet is in anthropogenic climate change which, as experts explain, significantly changes its natural state.

Because of this, the researcher also realized that Melting of the Greenland and Antarctic ice sheets which also happens for several decades “The angular velocity of the solid Earth has decreased” faster than before. Taking this trend into account, Agnew is able to predict the Earth's angular velocity.

As a result of global warming, there are more and more icebergs in the Arctic – PIXNIO

The time change will “cause a problem for the synchronization of computer networks.” Even the author claims. changes will be required to “align” UTC with the Earth's rotation. That is, according to Agnew, global warming and UTC are “inextricably linked” and “will be more so in the future.” Because, he assures, the acceleration of the melting of the population is the direct culprit, which leads to the change of the rotation of the Earth and, therefore, to the slowing down of the hands of the clock.

“Part of figuring out what will happen globally over time depends on what happens with global warming,” said Agnew, a professor of geophysics at the University of California, San Diego and the study's author.

According to experts, time measured in seconds will change

Beginning in the late 1960s, the world began using Universal Time (UTC) to define time zones. UTC is based on atomic clocks, but still keeps pace with the planet's rotation.

But since the rotation speed is not constant, the two time scales slowly diverge. This means that a “leap second” must be added from time to time to rearrange them.

Los: atomic clocks They are in the business of measuring time or, so to speak, providing time in an extremely accurate way. These devices are also aligned with the Earth's rotation.

Nevertheless, Patricia Tavella, The Time Department of the International Bureau of Weights and Measures in France explains that Agnew's discovery could lead to a big problem. “Extra seconds were never stolenof atomic clocks that specify UTC. That is, “there's no precedent for what might happen when the time comes to do it,” Tavella says.

Planet Earth is suffering from the effects of the Anthropocene (NASA)

The slowing of Earth's rotation caused by melting ice and changes in the motion of its core has delayed the decision on whether to include a negative leap second and allowed more time to prepare.

The author prefers not to label this as some good effect of climate change. “I think that seeing global warming as a positive because of its effect on time is like looking at a polluted lake and seeing it as a positive because of its interesting colors,” he says.

In any case, the fact that climate change has been able to alter the rotation speed of the entire planet Earth, he emphasizes, is “another indication that. “We're making an impact on the world like it's never seen before.”

“The melting of the polar ice has been large enough to affect the rotation of the entire Earth in an unprecedented way. The fact that humans caused the rotation of the Earth to change is amazing to me. It isWe are impacting the world like never before “concludes the author of the research.

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