1. Erth and Earth are different planets. Earth is a dumb rip-off of Erth. (It’s actually the other way around, but my personality doesn’t think so)
2. Well, I like it when it snows 5.749263751 inches, but it snowed 5.749263752 inches, so I moved to Erth. In fact, a lot of Neptunians moved to Erth because of that.