A huge amount of plant material is produced every year when plants die or are harvested. In this podcast, we find out how scientists are using all of this plant matter to make useful biofuel.

Intro theme and various sound effects by Adam Dylewski; music by DoKashiteru (via ccMixter.org); Creative Commons licensed audio from freesound.iua.upf.edu includes sound by Justine Angus, thanvannispen, cognito, dobroide, Erdie, theta4, belloq, Connum, mikejedw and batchku.