[NYCynic]

Isn’t there also research into cellulose ethanol which can come from most any plant. That would be something turn your grass clippings and hedge trimmings into fuel.

[TheThirdRuffian]

They already have make-your-own diesel kits that utilize that, in part.

In Texas, the taxing authorities don’t like it, of course.

[bert]

Or the crop that covers much of the Southern mountains to fantastic depths.....cudzu

[crz]

Spent Liquor gasification. Uses a byproduct of paper making to make bio fuels.

Do a search on it.