We, and our cars puke it out all day, everyday. That should help to silence the Enviro-nuts...No CO2 is actually going on the atmosphere and sitting there, it's more like recycling it back into the Algae through the atmosphere, which fuels our cars...
I'm reading those two sites now, I'll edit with any goodies I find. This does look very promising. Cellulosic Ethanol is still viable, but this seems to be...
more viable.
EDIT: nothing...there's no mention of yeild, or potential. Energy costs v energy yields; how much it can make, ect...nothing.