Ray Brewer, 66, duped investors out of nearly $9 million claiming he could turn cow manure into green energy. He was sentenced to over six years in federal prison for the Ponzi scheme.

There, bacteria break down the cow manure and food waste, creating biogas, which can then be used for electricity, heat, compressed natural gas and even vehicle fuel. 6.

It might not sound glamorous, but cow manure could soon be the unlikely hero of sustainable manufacturing. Scientists have discovered a way to transform cow dung into cellulose, one of the world's ...

Out in Scotland, Wolf’s Legendairy uses a special machine to turn cow manure into something useful. When Darrell Harden learned about it, he knew there was a way he could bank on his big idea to ...

A French farmer steps away from his barn and fills up a tractor with fuel made from the manure of his cows, an attempt to put their climate-damaging ...