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.

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