Environment & Energy

and he didn't need to see a tv show to understand. His actual engineering work experience taught him that hydrogen was the solution. You want to take away much needed food growing farm land which will raise food prices to produce "bio diesel" in quantities that are too small to meet civilizations growing power needs to produce a fuel that's not enough of a reduction in CO2 emissions for the catastrophe our planet is facing. It's clearly not a solution. I suggest that you leave this issue to the aviation/automotive engineers who know way more about this.