That mountain of excrement not only poses a disposal problem, it also creates a potent source of greenhouse gases.But to researchers at UCLA, it's not just a big pile of poop: it's a really big ...

But to researchers at UCLA, it’s not just a big pile of poop: it’s a really big – and renewable – source of biofuel. Fig. 1 by the University of California on YouTube When UCLA grad and Fulbright ...