So, what are the economics of converting fertilizer and tractor fuel into automobile fuel?

FORBES: Moonshine on Capitol Hill

The technology isn't new-a patent for a hydrogen internal combustion engine was issued in 1928, and a 20hp fuel-cell tractor was demonstrated in the late 1950s.

FORBES: Magazine Article

Fewer herbicide applications mean fewer tractor trips across the field, less fuel consumed and lower overall carbon emissions.

FORBES: Commentary

The nation lacks the rail capacity to haul grain to ports like Houston or Portland, and it would take 60 tractor trailers (and a fortune in diesel fuel) to move the contents of just one barge.

FORBES: Magazine Article

Hemisphere's devices significantly improve productivity by enabling the farmer to maneuver his tractor with precision and thus save money on seed, fuel and fertilizer.

FORBES: Magazine Article

We estimate, for example, that we can increase fuel economy by as much as 25 percent in tractor trailers using technologies that already exist today.

WHITEHOUSE: Promoting Cleaner, More Efficient Vehicles