Climate Change's Impact on Earth's Rotation and Timekeeping

Climate change is causing the melting of polar ice, which is altering Earth's rotation and potentially impacting precision timekeeping. The changes in the planet's shape due to global warming are slowing down the acceleration of Earth's rotation, leading to the possibility of needing to insert a "negative leap second" into the calendar to keep the planet's rotation in sync with Coordinated Universal Time. However, there is uncertainty in predicting these changes, and while it's more likely that a negative leap second will be needed, it's still difficult to determine exactly when this adjustment will be necessary.