Stanford researchers propose using anaerobic bacteria to break it down, producing nitrous oxide or laughing gas. Then, use the nitrous oxide as rocket fuel, of course, which burns leaving only harmless oxygen and nitrogen as byproducts. Rather than running needless rockets round the globe, the researchers propose that we use rocket-thruster technology to power sewage processing plants, creating a closed loop.
Clean energy from poop to clean up more poop. I like it.