 With the use of non-edible vegetable oils produced by trees such as Millettia Pinnata (formerly Pongamia Pinnata) or the Moringa oleifera tree, both which grow on borderline or non-arable land, the food versus fuel debate becomes less of an either/or question.Apart from their facility of growing in non-arable and/or marginal land, these trees offer major advantages over peanut, soy-bean, sunflower, etc., in that they have long lives (up to 100 years), very low maintenance (since the intensive husbandry is limited to the first few years of their producing lives) and can provide cash-crops to rural areas, such as rural India.In the case of Millettia Pinnata and a few others, the fact that they are nitrogen-fixing legumes is another very important factor, in that they do not deplete the soil.