Climate change is slowing Earth’s spin at unprecedented rate compared to past 3.6 million years

Climate change is lengthening our days because rising sea levels slow Earth’s rotation. Researchers from the University of Vienna and ETH Zurich now show that the current increase in day length—1.33 milliseconds per century—is unprecedented in the past 3.6 million years. The team reconstructed ancient day-length fluctuations using the fossil remains of single-celled marine organisms known as benthic foraminifera.

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