Comment by belorn

Are there really discarded parts? Usually when people talk about discarded parts, what they really mean is those not used in the first process. The article says "parts of the crop that would otherwise go to waste", but just a quick glance seems to show that there are other products that uses those parts of the crop, like biodegradable packaging and animal feed.

Turning it into fuel and burning it would compete with the other uses for those 30%.