Microbial Fuel Cell

Engadget says it "turns poo to power"- a microbial fuel cell (BioElectrochemically-Assisted Microbial Reactor or BEAMR) that was originally developed to clean wastewater, and "demonstrates that there is real potential to capture hydrogen for fuel from renewable sources (like from human, industrial and agricultural waste) for clean transportation". It seems almost too good to be true: produce hydrogen from waste with one tenth the electricity of electrolysis, end up with clean water as the byproduct.

Treehugger is rushing to the patent office with the idea of a toilet mounted in a BEAMR equipped car- now when you need a fill-up, you go to McDonalds. ::Extreme Fuel Cells via ::Engadget by [LA]

update: here are two (less frivolous) links:
::Sustainablility Zone
::REnewable Energy Access