Sian Berry, writer & campaigner

Sian Berry (dubbed 'environmental viagra' by The Independent was one of the Green Party's principal speakers, 2008 London Mayoral candidate and one of the founders of the Alliance Against Urban 4x4s. Sian is also a judge for the What Green Car awards and is often asked to write opinion pieces for papers and magazines. She is also the author of the '50 ways series of books, including 50 Ways to Greener Travel. Her most recent book is Mend It!: 400 Easy Repairs for Everyday Items.