An alternative agricultural energy fuel source, federally legislated, could have bean beans instead of corn. Farmers would be paid to grow beans, and each person would be required by federal law to consume at least one pound of beans per week. Congress would name this act: Federal Agriculture Re-energizing of Transportation Systems (FARTS). A gas collection system would be installed in each residence, business, public building, rest stop, and rest room. Citizens would be required to make use of the facility - a collection nozzle (attached to each citizen where the sun don't shine) with a large hose attached to a vacuum to collect gas. Oil companies would be required to collect gas from these collection stations weekly. Automobile manufacturers would be required to produce a number of vehicles each year - starting at 15% - that would run on methane gas. Many subsides and tax incentives would be introduced, but would be offset by enormous multi layer taxes on beans, collection stations, volume of gas produced by bean consumers, and collection nozzles. The price of nozzle lube (syn or dino?) would skyrocket.
Bean prices would increase dramatically overnight, farmers would make more money. People would feel good (no not just from passing gas) because they are helping the environment. Government would collect enormous taxes and increase power by giving out some paltry tax cuts to their favored constituents. Mileage per gallon would decrease, price of fuel would increase to cover costs plus taxes.
Exceptions would be California, Chicago, and several other places that would double/triple methane gas taxes as compared to other places and require only certain types of beans to be consumed by their citizens (called Cafe' blends). Methane gas in these areas would cost 30 to 50% more than other areas, but their citizens are used to that already.
A darn shame we did not adopt beans the Magic Fruit years ago instead of corn for energy, we might have farted our way to energy independence by now.