The following is an encore presentation of Everything Everywhere Daily.

Located above 66 degrees, 33 minutes latitude north is the region that we call the Arctic.

The Arctic is unlike any other environment on Earth, even the Antarctic.

It's sparsely populated and has unique wildlife as well as a biome that

can't be found anywhere else. It's completely dark in the winter and the sun never sets in the

summer and of course it's really cold. Learn more about the Arctic and what makes it so special

on this episode of Everything Everywhere Daily.

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If you've never been to the Arctic, you might think of it as a desolate wasteland.

But it's not. It's an environment that's unique in the Arctic, you might think of it as a desolate wasteland. But it's not.

It's an environment that's unique in the world, and there are many things that set it apart from even Earth's polar region in the South. So what exactly is the Arctic? The Arctic is

defined by the Arctic Circle, which lies at 66 degrees, 33 minutes, and 50.1 seconds

latitude north. Everything above that imaginary line is considered to be the Arctic. So what is so

special about that exact latitude? That latitude corresponds to the axial tilt of the earth. The Arctic Circle

is the point where the sun doesn't set above that line on the summer solstice, and the sun

doesn't rise above that line on the winter solstice. The axial tilt of the Earth also defines

the Antarctic Circle in the south, as well as the tropics of Capricorn and Cancer.

The Arctic Circle is not a fixed point. It changes over time, but very, very slowly.

Every year the Arctic Circle moves 14.5 meters or 48 feet to the north.

And this will continue for approximately another 10,000 years,

...