Environment

Rising sea levels slow down rotation of earth

photo credit: The Earth's rotation has slowed over the last few thousands years . Rob Byron/Shutterstock

With temperatures around the globe rising at an unprecedented pace, ice sheets and glaciers are melting, and causing sea levels to start to swallow islands and cities up around the world. Research published in Science Advances reports that changing sea levels additionally affect the Earth’s rotation. By quantifying how potent the effect is, the scientists possibly have resolved a longstanding conundrum named “Munk’s enigma.”

According to Munk, though Twentieth century sea level increase ought to have made a change to the rotation of the Earth, there wasn’t any available observational information of this effect. A staff of scientists– led by a Harvard University professor of geophysics, Jerry Mitrovica – was determined to evaluate this mystery. Utilizing a mix of computer modeling and calculations, they think they have discovered the answer to this riddle concealed within the last ice age.

Within the start of that era, global sea levels dramatically dropped as the globe’s water was locked up in ice sheets and glaciers worldwide. At the completion, the large melting caused rising sea levels. It would’ve had a substantial effect on the Earth’s rotation, and Munk took this into consideration within his 2002 paper.

The research says that his estimates of the effect of the past ice age were erroneous. Also, the writers suggest that Munk utilized a flawed model of the planet’s internal structure, and that the Twentieth century glacial melting was 30% less serious than Munk thought.

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