Officials in London, Glasgow and the U.N. climate headquarters in Bonn are trying to figure out how to salvage the 26th annual United Nations climate conference, known as COP26. The summit is supposed to be held in Glasgow in the first two weeks of November. But POLITICO’s Karl Mathiesen explains the challenges of hosting a global summit amid an unpredictable pandemic.   Anthony Adragna is an energy reporter and author of Morning Energy. Karl Mathiesen is the Senior Climate Correspondent at POLITICO Europe. Nirmal Mulaikal is a POLITICO podcast producer.  Carlos Prieto is a POLITICO podcast producer. Jenny Ament is the senior producer of POLITICO’s audio department. Irene Noguchi is the executive producer of POLITICO’s audio department. Learn more about your ad choices. Visit megaphone.fm/adchoices