Natural gas has it's place in the future of our national energy strategy, but it has major limitations. While you can compress LP (propane) into tanks, this is not possible with natural gas. Also, fracking is terrible for the environment and the future of an even more precious resource: fresh water. The gas companies come into areas, pump in toxic chemicals to break loose the pockets of gas, and leave the surrounding communities with toxic drinking water. Hydrogen was a diversion by the energy companies to distract us from other, more viable and cleaner energy sources. It costs energy to make the hydrogen which negates the net gains. Biodiesel is the near future for sure until something better comes along. Producing it from algea, powered only from the sun is not still being developed, on the contrary, there are companies already doing it. In the late 2000's many gas stations and trucking companies were convinced to start using biodeisel and it gained momentum for a short period of time. In response, the auto manufacturers (most likely because of pressures from the energy companies) decided to void the warranty if biodiesel was used in their engines, even though experts say that when processed correctly, it has no detrimental effects on the engine. The energy companies, with their vast monetary resorces, then began a smear campaign to quell this revolution in it's infancy. The reasoning was the runoff from the crops was polluting the environment (which food crops like corn have always done, but no one ever put out a smear campaign against Monsanto). This essentialy postponed those efforts. Look at who benefits from from events and you will know the architect.
For myself, I know that when my 4.0 finally dies in the future, I will take a hard look at diesel as a replacement.
