Measuring Carbon and Making Net-Zero Shoes

Tim Brown is a former footballer who went on to co-found Allbirds, a billion-dollar brand known for its woollen shoes.

We hear how Tim balanced his passions for football and shoe design, while growing up in New Zealand.

The challenges that came when making a career change

And how his brand was inspired by a dream to rescue New Zealand's declining wool industry.

Presenter: Sam Fenwick Producer: Amber Mehmood

(Image: Tim Brown, co-founder of the shoe brand, Allbirds. Credit: Getty Images)