Hello! Episode 5 is full of pollution, it's in the air and it's shortening lives. What can we do about it? Our wonderful guests this week have ideas. Hear from London Mayor, Sadiq Khan, Andrea Lee from ClientEarth & Jens Frolich Holte, Norway's Former Adviser to the Minister of Environment and Climate Geoff and Ed adventurously take on a GIANT revel, take a stroll and take a selfie. AND Comedian Amy Annette wants the world to listen, and us all to be allowed to take up a bit more space.