Every week in Wales, people stand up on stage and talk. They talk about their lives, their communities, their passions. Behind each talk is an idea. And in this series, we hear a selection of these talks but also hear from the speakers who delivered them. Join Catrin Nye to explore the central idea behind their stories, how their experiences have shaped them, and how they hope their talk will help to shape us.

This week we explore the idea that all things matter. Journalist Sali Hughes, farmer Isabella Tree and physicist Oliver Williams talk about nature in its different forms.

The Idea is a Bengo Media production for BBC Radio Wales Show less