haughtney1,
Regardless of the cynicism, I don't consider private industry any better at voluntarily reducing it's emissions or investing potential dividend into expensive and risky R&D.
angelorange,
The problem with biofuels is they will only encourage further deforestation and land clearing as they become a cash crop. Given the difficulties in the supply side of agricultural production, diverting agricultural yealds towards fuel production is untenable.
At the end of the day you are looking at being able to produce only a small fraction of the the global requirement which further impinges on the the economics of such production. If anything, bio fuels would be great as a local energy source (as happens in Brazil) but far from a realistic option for a replacement for avgas, or even small sized towns energy requirements.