Global Warming and Toilet Paper?

Now, I've heard some farfetched ideas about global warming, but this one is just a little out there for me. Sheryl Crow is starting to sound like my father!! He was not worried at all about global warming, just overflowing toilets and his weekly grocery bill. I don't wonder if we're taking this a bit too far when we begin to regulate bathroom trips and sanitation. I'm sorry, but I'm just not following her on this one. I understand it's "just an idea", but I think we better wipe the slate clean so to speak and start over on this one. Remind me: what is the connection between wiping and warming???