"Nobody really anticipated that the Earth would speed up to the point where we might have to remove a leap second," he said.
Polar ice melt is changing Earth's rotation, messing with time itself
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Earth’s speeding up because its hot liquid core - “a large ball of molten fluid” - acts in unpredictable ways, with eddies and flows that vary, Agnew said.
A faster-spinning Earth could cause timekeepers to subtract a second from world clocks
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