Founders: Olio CEO Tessa Clarke's fight against food waste

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 George

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(Picture: Tessa Clarke. Credit:Annabel Staff)