It's the final episode of Sky News ClimateCast for 2021 and to celebrate, hosts Anna Jones and Katerina Vittozzi get stuck into some jam-packed festive fun as they swap white Christmas for green. As new research reveals more people than ever before are trying to be more sustainable this Christmas, the pair explore ways to reduce their carbon footprint during the holiday season. Anna challenges Katerina to Christmas Dinner quiz to guess the most eco-friendly items around the table and Santa's older brother, Green Santa is in town. He's encouraging children to make a wish for the planet this year. Anna and Katerina hear from some of those children, as well as the mastermind behind the idea, Dr Laura Kehoe, an environmental scientist at the University of Oxford.Hosts: Anna Jones and Katerina VittozziPodcast Producer: Emma Rae WoodhouseGuests: Kate Norgrove, Executive Director of Advocacy and Campaigns, WWF-UKWilliam Sankey, The Good Shopping GuideDr Laura Kehoe, environmental scientist, University of Oxford