This week, we're in the company of Tom Robinson, a man on a mission to create healthier buildings with with his bio-composite alternative to traditional plasterboard. "Our products act as a set of lungs, absorbing the moisture when we cook and clean and then, when we sleep, breathing it back out."

Plus, this week's news round-up features Rio's real Olympic legacy, the Premier League football sustainability quiz, the non-compliance naming and shaming debate, and Waitrose new pasta packaging.