84. From cow poop to ethanol with a biogas operation in between: An integrated bio-refinery

Published: Oct. 16, 2014, 9:24 p.m.

b'Alberta produces a lot of beef. And with of those cows comes cow poop. One Alberta company has taken what was formerly a waste and turned it into the backbone of a three tiered business that produces electricity, heat and ethanol. Learn how they do it this week at Green Energy Futures.'