Firm develops jet fuel made entirely from human poo
bbc.com
bbc.com
So no magic bullet, but a contribution to sustainability. Fair enough. They go on to talk about a demonstration facility. I wonder if purity of the source would be a problem. Sure, we've got a lot of human excrement but it's mixed in with everything else in our sewers.
"Ladies and gentlemen, we are now flying over Secausus. If you wish to flush, please do so now."