The Beijing 2022 Winter Olympic Games are powered entirely by renewable energy but does that mean they are 100% sustainable?Melted mountains, 100% artificial snow and slopes in the shadows of power plants have highlighted the difficulties of putting on a “Green Games”. So how sustainable are winter sports and is their future on a slippery slope? On this week's episode of Sky News ClimateCast, hosts Anna Jones and Katerina Vittozzi explore how we can protect the Winter Olympics from climate change with three-time Olympian and halfpipe snowboarder Lesley McKenna, Founder of Sport Ecology Madeleine Orr and Sky's China correspondent Tom Cheshire.Plus, fossil fuel companies profit from the energy crisis, Madagascar is hit by another deadly storm, and climate change meets the Oscars in this week’s climate news.Hosts: Anna Jones and Katerina VittozziPodcast Producer: Emma Rae Woodhouse Guests: Tom Cheshire, Sky CorrespondentMadeleine Orr, Founder of Sport EcologyLesley McKenna, Three-time GB Olympian in snowboard halfpipe and Protect Our Winters Ambassador