The melting of global glaciers has profound effect on the Earth’s rotation due to the significant mass redistribution across continent-ocean system. Kiani Shahvandi, et al. (2024a) have demonstrated that the melting of global glaciers can alter the Earth's rotation by a significant amount. This contribution is slightly smaller than that of the melting of polar icesheets, but is projected to increase, such that it can get as important as that of the melting of Greenland icesheet in the 21^st century.

Similarly, Kiani Shahvandi, et al. (2024b) showed that the melting of global glaciers has a significant influence on the variations of length of day, as far as the barystatic processes are concerned.

References

Kiani Shahvandi, M., Adhikari, S., Dumberry, M., Modiri, S., Heinkelmann, R., Schuh, H., Mishra, S., Soja, B. (2024a). Contributions of core, mantle and climatological processes to Earth’s polar motion. Nature Geoscience, 17: 705-710, https://doi.org/10.1038/s41561-024-01478-2

Kiani Shahvandi, M., Adhikari, S., Dumberry, M., Mishra, S., Soja, B.  (2024b). The increasingly dominant role of climate change on length of day variations. Proceedings of the National Academy of Sciences, 121: e2406930121, https://doi.org/10.1073/pnas.2406930121