If you're talking about the christian God. I can disprove him. This is assuming you're taking the bible literally. http://www.talkorigins.org/faqs/icecores.html And not having proof, therefor nothing to be disproven, is a horrible idea for accepting something as true. If I told you right now, that there were invisible leprechauns flying around your house right now, you wouldn't be able to disprove me. Does that mean you should take me seriously? Of course not.