what degrees does the arctic circle sit at
Arctic Circle The position of the Arctic Circle is not fixed; as of 22 January 2018, it runs 66°33′47.0″ north of the Equator.[1] 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.[2] Consequently, the Arctic Circle is currently drifting northwards at a speed of about 15 metres (49 feet) per year.
Arctic Ocean The climate of the Arctic region has varied significantly in the past. As recently as 55 million years ago, during the Paleocene–Eocene Thermal Maximum, the region reached an average annual temperature of 10–20 °C (50–68 °F).[26] The surface waters of the northernmost[27] Arctic Ocean warmed, seasonally at least, enough to support tropical lifeforms[28] requiring surface temperatures of over 22 °C (72 °F).[29]