Peed-upon disposable diapers may be able to pay it forward in the form of garden fertilizer, but it doesn't look so promising for a Japanese company's experiment in repurposing poopy diapers and turning them into a fuel source.
Daddytypes did a little digging and has the full scoop: if you see a story about the revolutionary discovery of poopy-nappy fuel cross your feed reader, don't get too excited. Japanese diapers are paper, not the plastic/fabric/noxious gel bead type found in the US. And they don't seem to produce a heck of a lot of energy anyway.
Damn. One of the most sustainable and renewable resources we've got, and it isn't worth shit.