Summary:

- Human-driven climate change is causing the Earth's rotation to slow down at a rate not seen in over 3.6 million years. This is due to the melting of glaciers and ice sheets, which redistributes the planet's mass and alters its rotation.

- As the Earth's rotation slows, the length of a day is increasing by about 0.06 milliseconds per century. This may seem small, but it can have significant impacts on our timekeeping systems and the way we measure time.

- The slowdown in the Earth's rotation is a clear sign of the profound impact that human activities, such as burning fossil fuels and deforestation, are having on the planet's climate and physical processes.