Computers are more expensive than typewriters, just like Navy Secretary Ray Mabus says. He is also correct in that bio-fuels cost more than standard hydrocarbons. However, switching from typewriters to computers improved productivity dramatically. Switching to green fuels will not improve productivity one iota.
Up until the 70’s every manager had a secretary, now managers share one because the computer allows one secretary to do the job of two, three or four secretaries with typewriters. Bio-fuels do the same exact job as standard hydrocarbons but at a much higher price.