Business Daily

Tessa Clarke is the co-founder and CEO of Olio, the food-sharing app helping millions of people reduce waste by sharing food and household items with their neighbours. She explains how a simple idea grew into a global movement, the challenges of convincing investors to back it, and why changing human behaviour may be key to tackling climate change.Presenter: Leanna Byrne Producer: Barbara GeorgeYou can email the team: businessdaily@bbc.co.uk(Picture: Tessa Clarke. Credit:Annabel Staff)