TED-Ed

View full lesson: http://ed.ted.com/lessons/biofuels-and-bioprospecting-for-beginners-craig-a-kohn Biofuels can provide energy without the reliance on environmentally harmful fossils fuels -- but scientists are still searching for a plentiful source. Craig A. Kohn demonstrates how cellulose, the naturally abundant tough walls of plant cells, might be the solution. Lesson by Craig A. Kohn, animation by Hache Rodriguez.