In The Apple Tree

The position of the Arctic Circle is not fixed; as of 27 July 2018, it was 66°33′47.2″ north of the Equator. Its latitude depends on the Earth’s axial tilt, which fluctuates within a margin of 2° over a 40,000-year period, due to tidal forces resulting from the orbit of the Moon.

Currently, the Arctic Circle is drifting northwards at about 15 metres (49 feet) per year.