They did it! Greens4HS2 finally swung the Green Party of England and Wales into having a viable stance on high speed rail, crucially meaning that the party can (a) hold Labour's feet to the fire properly on its rail investment plans or lack thereof and (b) it can actually comment on any transport or other investment policy at all without looking ridiculous. It has been a long time coming though, and I'm delighted to say we're joined by Emma Garnett, sustainability researcher at the University of Oxford and key figure in G4HS2 and the wider GPEW. Her and the team worked extremely hard to make this change happen, and how they made this work is instructive for all of us who want to see policy change via grassroots activism. Not to be missed! Enjoyed this? Please do consider supporting #Railnatter at https://patreon.com/garethdennis or throw loose change at me via https://paypal.me/garethdennis. Merch at https://garethdennis.co.uk/merch. Join in the discussion at https://garethdennis.co.uk/discord.