Lesson #768 - The Science of Winter

I proposed this theory to theSwede, and she very quickly offered a counter-theory: what if ghosts are just very clumsy, and basically fall and trip their ways around the globe, up and down the slope created by the earth's axis?

And of course, now that you have heard of the Ghost Migration Theory and the Clumsy Ghost Theory, we fully expect earth science classes to update their curriculum immediately. You can't prove us wrong!