If you've taken so much as a passing interest in environmentalism in the UK, you'll have doubtless encountered the campaigner and writer Jonathon Porritt.Since the '70s he's been at the forefront of the wider green movement: prominent in the Ecology party (what became the Green party), running Friends of the Earth, advising the UK Govt and the likes of Kelloggs & Unilever how not to be gits, and now working with the school strikers.Raising eyebrows in the process, he also had a crack at persuading oil companies to see the light, before publicly concluding that they basically don't want to.Now, with his new book out - Hope In Hell: A Decade to Confront The Climate Emergency - Jonathon takes on his biggest challenge yet: 40 minutes of Paxman-esque grilling by the Babble. We think he just about survives the interrogation, but judge for yourselves.Sustainababble is your friendly environment podcast, out weekly. Theme music by the legendary Dicky Moore – @dickymoo. Sustainababble logo by the splendid Arthur Stovell. Ecoguff read out by Arabella. Love the babble? Bung us a few pennies at www.patreon.com/sustainababble.MERCH: sustainababble.teemill.comAvailable on iTunes, Spotify, Acast & all those types of things, or at sustainababble.fish. Visit us at @thebabblewagon and at Facebook.com/sustainababble. Email us at [email protected].