Free Beer & Hot Wings: United Kingdom Has Bus That Runs on Poop [Video]
The United Kingdom is changing how people are getting from place to place, and it's quite interesting.
How are they doing this, you ask? They're doing it with poop. Yeah, that's right, fecal matter.
You've heard of cars using vegetable oil as fuel, right?
Well, you can put two and two together!
This is truly interesting -- and a little disgusting.
Source: Free Beer & Hot Wings