Climate change is messing with time more than previously thought, scientists find

The changes are small — a matter of milliseconds a day — but in our high-tech, hyperconnected world have an important impact on computing systems we have come to rely on, including GPS.Satellite image of the Earth centered on the North Pole. Melting polar ice is messing with time and altering the length of each day.

The number of hours, minutes and seconds making up each day on Earth are dictated by the speed of the Earth’s rotation, which is influenced by a complex knot of factors. These include, the ongoing impact of the melting of huge glaciers after the last ice age, as well as melting polar ice due to climate change.

But that could be changing. If the world continues to pump out planet-heating pollution, “climate change could become the new dominant factor,” outpacing the moon’s role,It works like this: As humans warm the world, glaciers and ice sheets are melting, and that meltwater is flowing The team of international scientists looked at a 200-year period, between 1900 and 2100, using observational data and climate models to understand how climate change has affected day length in the past and to project its role in future.Climate change-fueled sea level rise caused the length of a day to vary between 0.3 and 1 milliseconds in the 20th century. Over the past two decades, however, the scientists calculated an increase in day length of 1.

Precise timekeeping is vital for GPS, which everyone with a smartphone will have, as well as other communication and navigation systems. These use highly precise atomic time, based on the frequency of certain atoms. Duncan Agnew, professor of geophysics at the University of California San Diego and author of the March study, said the new

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