Originally Posted by dauber

This is not an argument to this quote, just a question to help educate myself.
What if we made bio-diesel from plants we don't eat or even algae, like I have seen on programs on TV? How would this drive up the costs of food supply? unless farmers grow for bio instead of food, like they are already doing with corn for ethanol. Not looking for a lenthly discussion on what we should or should not be doing but I just sounds simple when people casually talk about it.