Net zero targets are proliferating across the world, covering not only countries but also business, investors, cities, states and provinces, universities, and many others. But are these targets credible? And how can we ensure they lead to change? A new report sheds light on both the scope and, critically, the quality of the groundswell of net zero targets globally. Join Professor Thomas Hale, Blavatnik School of Government, Dr Aoife Brophy, Saïd Business School & Dr Steve Smith, Net Zero Initiative, in the ninth talk of the Oxford net zero: climate in the balance series of discussions.