If the world warms more that 1.5 degrees Celsius more than pre-industrial levels, the consequences will be catastrophic.That’s the consistent warning from scientists ahead of COP26, the UN Climate Change Summit in Glasgow.The meeting is in the words of John Kerry, the “last best chance” to keep that temperature rise in sight.So what will it take to “keep 1.5 alive?”On this week's episode of Sky News ClimateCast, hosts Anna Jones and Katerina Vittozzi are joined by Sky's expert correspondents who have been following the build-up to COP26 for months, and who will be scrutinising the conference in the coming weeks.Our climate, political and science correspondents discuss why a lack of finance for developing nations and a reliance on coal could jeopardise the crucial negotiations that will determine the future of our planet.But can we afford anything other than success?Hosts: Anna Jones and Katerina Vittozzi Podcast Producer: Emma Rae WoodhouseContributors: Hannah Thomas-Peter, Climate Correspondent Tom Clarke, Science and Technology Editor Kate McCann, Political Correspondent