Sublime

The arctic circle is not a fixed line!

1) Geographic north pole: Where the earth axis of rotation meets its surface —> -”True north pole”

2)Celestial north pole: Point in the sky where earth axis of rotation intercedes the celestial sphere

3) Magnetic north pole: Where your compass points.

• moves over time

• South pole is not on the exact opposite side of

https://www.bbc.com/news/articles/cvgeydkz08go

World's sea-ice falls to record low

The world's frozen oceans, which help to keep the planet cool, currently have less ice than ever previously recorded, satellite data shows.

Sea-ice around the north and south poles acts like a giant mirror by reflecting much of the Sun's energy back into space.

But as