There has been the technology around for over 50 years to convert coal to diesel fuel using a process called Fischer-Tropsch. The diesel fuel from coal is inherently cleaner than the diesel fuel we think of today that exhausts dirty sulfur laden fumes out our tail pipes. This new diesel gives off less pollutants then today's gasoline and on top of that allows cars to get 50 MPG+ (That's a double win). We have a large supply of coal in this country that could be utilized. Hey this seems like a no-brainer to really push this technology and usage of American resources. I think this is truly the needed alternative fuel we should adopt until technology can fully get us away from the combustion engine.