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Earth's Fastening Spin May Trigger 'Negative Leap Second'

7/8/2025

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Summary

Story summary

Earth's rotation is accelerating, raising the possibility of a "negative leap second" by 2029. This unusual change, driven by climate change and polar ice melt, could challenge our timekeeping systems. As the planet spins faster, global timekeepers are urgently considering how to adapt to this unprecedented shift in time.

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Story summary

Earth's rotation is accelerating, raising the possibility of a "negative leap second" by 2029. This unusual change, driven by climate change and polar ice melt, could challenge our timekeeping systems. As the planet spins faster, global timekeepers are urgently considering how to adapt to this unprecedented shift in time.