Covid Inquiry, fossilised trees in the Fens, and getting Britons moving

James Tytko and the Naked Scientist team present the latest science news, analysis and breakthroughs.This week Boris Johnson gives evidence to the UK Covid Inquiry, the farmers digging up 5000 year old trees on the Fens, a new drug to prevent fentanyl overdose, and how to confront the UK’s activity crisis.Get the podcast from the BBC Sounds app.