The BBC\u2019s Justin Rowlatt explains why China\u2019s announcement at the UN General Assembly could be a significant step in the fight against climate change. And Laura, Fergus and Adam discuss why Boris Johnson says the UK is at a \u201ccritical moment\u201d in the coronavirus pandemic.
Studio Director: Emma Crowe\nProducers: Ben Weisz, Frankie Tobi\nAssistant Editor: Sam Bonham