Climate change and meat: what's the beef?

Would cutting back on meat consumption help tackle climate change? What impact would this have on individuals, governments and businesses? Livestock farming accounts for at least 14.5% of all human emissions - with beef making up the highest proportion of this. Meat free burgers are now available at fast food restaurants across the western world; veganism is on the rise, as is flexitarianism - a largely vegetable-based diet supplemented occasionally with meat. But how far can these eating trends help to reduce carbon emissions?David Aaronovitch is joined by: Dr Hannah Richie - Head of Research at Our world in data, University of Oxford Tim Searchinger - Senior Fellow, World Resources Institute and Princeton University Professor Louise Fresco - President of the Wageningen University Laura Wellesley - Research fellow in the Energy, Environment and Resources Department at Chatham House Toby Park - Head of Energy and Sustainability, Behavioural Insights TeamProducer: Serena Tarling Editor: Jasper Corbett