This sounds really cool:
Scientists find bugs that eat waste and excrete petrol
If you can get past the lingo (by "bug" they mean bacteria, and "petrol" is British for crude oil), this amounts to a pretty amazing discovery. Crude oil produced by bacterial consumption of food waste. Not only that, but the process is carbon negative, meaning that burning the stuff puts less CO2 into the atmosphere than the CO2 consumed in producing it.
Don't know how practical it will be to mass-produce, though.