WOW. That is amazing. It makes so much sense, and it isn't any thing I ever would have thought of. I knew that the universe was expanding, but the possibility that the Earth actually grew never occured to me. But, now that I think of it, it does make sense. There doesn't seem to be any reason why it wouldn't grow and expand like, say, a child.
however, if this is the case, then that means that the Earth will indeed have to end it's life span at some point, like people. But could it be that it will have an elastic effect and shrink?