marijuana plants provide for all of the fuel/energy, paper, clothing, and tons of other shit. do some research. it a resource that is completely renewable, can be grown in mass quantities, completely clearcut, and regrown in months. and we don't use it why?
weed is bad.
what a bunch of bullshit.
fuck hydrogen, too. until it can be produced efficiently and without using petrol, it's a worse idea than corn ethanol.