It appears reports of the demise of the world’s fuel supply may have been overstated. And what do we have to thank for that? None other than beer. I found this report on the L.A. Times Web site. It’s about a California company that has invented a machine that converts organic waste into ethanol that can be used to fuel your car. The company has already signed agreements with several brewers to provide old beer and leftovers from the brewing process. The best part: You eventually could have one of these machines at your house. (Isn’t this kind of like in “Back to the Future” when Doc is putting banana peels into his time-traveling Delorean’s gas tank?) The only problem I see is that I would have a large roadblock to overcome when it came time to fill my conversion tank with old beer: The beer would be gone before I had the chance.