"The last chance saloon for the planet." Those were the words of Prince Charles as COP26 gets into full swing in Glasgow, Scotland. We discuss the stakes for us all as world leaders go head to head over the future of the Earth. Climate change is "the ticking doomsday device", says summit host and UK Prime Minister Boris Johnson. Who has the political will and courage to effect the kind of change that experts say is urgently needed to save our planet?