Re: Hydrogen is a solution and its own worst enemy
using biofuel production to consume agricultural waste IS a good idea on its own. It is possible to convert bio waste into oil. The process that I read about is actually EXOTHERMIC. You could then use this bio-synthetic oil to add to existing oil production, thus "offsetting" either a) trash production wasted as landfill, or b) whatever environmentalists decide is "helping". Either way it's a win-win so unless there's cost prohibition making it completely impractical, I say "go for it".
Note that SOME of this agricultural waste goes into composting and may still be useful as animal feed. So whatever does best for farmers, probably should do THAT first.