Is the equatorial circumference of earth changing?

The equatorial circumference of Earth is not changing significantly in a way that would be noticeable on human timescales. While geological processes, such as tectonic activity and erosion, can alter the shape of the Earth slightly, these changes are minimal. Additionally, the effects of climate change, like polar ice melting, can influence sea levels but do not directly affect the equatorial circumference. Overall, the Earth's equatorial circumference remains relatively stable.