What is COP26? Here's what you need to know about the crucial UN climate conference set to take place in Glasgow, Scotland from October 31-November 12, 2021. Featuring climate advocate Al Gore; Paris Climate Agreement architect Christiana Figueres; minister and activist Rev. Lennox Yearwood Jr.; UN High Level Climate Action Champion for COP25 Gonzalo Muñoz; and climate activist Xiye Bastida.