COP26 - we hear from some of the politicians, industry leaders, charities and campaigners from Wales who are among the 30,000 delegates attending the global climate change summit in Glasgow. We meet the students studying for a more sustainable living for us all, at the Black Mountains College in Talgarth, Powys. The farmer fined thousands for planting trees just a few centimetres out of place. The next generation of pork producers - the young farmer learning to keep pigs. And a nomination for Countryfile's Young Countryside Champion award - the teenager who's taken on his family farm, after tragedy struck in Montgomeryshire.