User blog comment:CourageousLife/Joint AltHist/@comment-4822327-20120219015637/@comment-32656-20120222070411

Again, likely makes it so that humans never exist. Heck, given the difference in location, it would probably kill all life on earth, with the increased amount of dust thrown into the atmosphere, not most, if changed to a spot that would cause such a fracture.

As I said, just write it as it existing with the rest of the world as otl until its discovery, and run with it.