On foxnews? Really I didnt see it.
You can't get to the icewall. Instant death by armed peguins. OR you are erased by the government either way if you make it, your not coming back. Some believe the earth is an infinite plane. Which would make the end all icewall very far away, as in infinitely far away so you could never get there...but if you can't ever reach the edge then does it really exist in the first place.
The icewall is high enough so that no atmosphere escapes.