Lucy Siegle is a writer, broadcaster and public speaker on ecological issues and sustainability who has been at the heart of contemporary conservation and environmentalism for two decades. As a reporter and presenter on BBC1's The One Show, she has been following the problem of single use plastic and wider ecological issues since the show began in 2007. Through her work as a journalist she is credited with mainstreaming action on plastic, fossil fuel fibres and the quest to make fashion a cleaner, fairer industry.

She is author of five books including To Die For: Is Fashion Wearing out the World? (Harper Collins 2011, nominated for the Orwell prize) and Turning the Tide on Plastic: How Humanity (and you) Can Make Our Globe Clean Again (Orion). She is co-producer and stars in the Netflix hit documentary, The True Cost. For 14 years she wrote the first popular sustainability column in a national newspaper, The Observer and is also known for her interviews and features with high profile environmentalists, from Sir David Attenborough to Bjork. In order to get more eyes on sustainable fashion, Lucy co-founded the Green Carpet Challenge with Livia Firth, working with designers from Armani to Stella McCartney and A-list talent. An accomplished live performer and champion of net zero business and policy, Lucy is in demand as a host, chair and keynote speaker.

Lucy is a professional speech writer for major high level climate events, including COPs. Since 2017 Lucy has worked on climate advocacy with the British musician and UN environment ambassador, Ellie Goulding. Lucy is a trustee for Surfers Against Sewage and an ambassador for WWF UK and The Circle.