Just when you thought 2016 couldn't get any gloomier, a YouTube channel has forecast the world is going to end next Friday reports The Week.

The End Time Prophecies channel says a global apocalypse will wipe out the entire population on  July 29, with a second coming of Jesus Christ and a reversal of the Earth's magnetic poles.

The doom-laden video offers Bible verses, some dubious science and curious CGI graphics to argue its point.

"The polar flip will make the stars race across the sky and the vacuum created by the reeling of the Earth will pull the atmosphere along the ground, trying to catch up," intones a computerised voice. "The global earthquake will be so bad that every hill and mountain will crumble."

It also quotes Revelations 6:12: "There was a violent earthquake, and the Sun became black like coarse black cloth, and the moon turned completely red like blood.