Europe is swimming in vehicles that burn the stuff, but in the U.S. the only option is the 2012 Honda Civic Natural Gas, formerly known as the Civic GX.

FORBES: New Honda Civic Will Be Only Consumer CNG Car In America

And few people bought the number one green car, the Honda Civic GX, which burns natural gas.

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Honda has hired Gladstein, Neandross and Associates to promote the Civic Natural Gas in 19 states in the Midwest, Northeast and Mid-Atlantic regions.

FORBES: New Honda Civic Will Be Only Consumer CNG Car In America

Auto writer Matthew de Paula and I are debating the practicality, performance and appeal of cars that run on diesel, electricity, natural gas and other non-gasoline fuels (entries include a Volt, Nissan Leaf, Honda Civic GX and Volkswagen Jetta TDI, among others).

FORBES: The Chevy Volt: Old Men In Queens Love It

Auto writer Matthew de Paula and I will be debating the practicality, performance and appeal of cars that run on diesel, electricity, natural gas and other non-gasoline fuels (entries include a Chevrolet Volt, Nissan LEAF, Honda Civic GX and Volkswagen Jetta TDI, among others).

FORBES: Car Wars: The Silent Nissan LEAF