Ten years ago this week, Al Gore's slide show about global warming was turned into the documentary An Inconvenient Truth, viewed since by millions of people all over the world.
Photo: Open Democracy
And, of course, the world is still getting hotter every month, despite the global influence of An Inconvenient Truth and the changes in policies and practices it has helped to inspire. We're joined by the former Vice President, who has a lot to say about climate change and a little about presidential politics.