Ideas and stories are limitless: our planet’s resources are not. The combined climate, biodiversity and nature emergencies are an existential threat to us all. So we all have a responsibility to help find solutions. Throughout Hay Festival we invite participants to contribute their ideas and concerns and to help build a combined mobilisation message for the future. Today we launch that message, encouraging everyone to be part of the change needed to secure a safe outcome for future generations.

Actor Julian Rhind-Tutt has appeared in Green Wing, Notting Hill and The Witcher. Documentary filmmaker Jack Harries is co-founder of Earthrise Studio. Environmental activist Jane Davidson is the former Welsh Government minister for Education, Environment and Sustainability. In conversation with Nicola Cutcher, investigative journalist, documentary maker, and freelance writer.