Best selling author, scientist and philanthropist Lucy Hawking joins us this week to chat about climate change which is the subject of her brand new book, Princess Olivia Investigates the Wrong Weather. We hear about who has been named Champ of the Earth in Science in the News, and answer the question: Why Do We Sneeze? We also catch up with Professor Hallux and Nurse Nanobot in their Map of Medicine, and hear about the movement of our earth from the Smartest School in the Solar System, Deep Space High!

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