Imagine a future in which airliners run on cornstalks and Navy ships ply the oceans on tanks of switchgrass. That day may be in sight but challenges remain to scale up production, reduce costs and political opposition, and ensure a sustainably produced feedstock.
Biodiesel, a cleaner renewable alternative to fossil diesel, can be made from any vegetable oil, but best using waste cooking oil. It’s use is growing across the US in 5 to 20 percent blends.
Paraguay’s President Lugo hadn’t delivered on promises to farmers who brought him to power, while transgenic soy farms expanded, and then he was overthrown in a coup.