Humanity is sitting on a ticking time bomb. If the vast majority of the world's scientists are right, we have just 10 years to avert a major catastrophe that could send our entire planet into a tailspin of epic destruction involving extreme weather, floods, droughts, epidemics and killer heatwaves beyond anything we have ever experienced.

If that sounds like a recipe for serious doom and gloom, well... An Inconvenient Truth is a call to action, powered by one man's fervent crusade to halt global warming's deadly progress in its tracks. That man is former US Vice President Al Gore, who, in the wake of defeat in the 2000 election, re-set the course of his life to focus on a last-ditch, all-out effort to help save the planet from irrevocable change.

In this surprisingly frank portrait of Gore and his “travelling global warming show”, Gore also proves himself to be one of the most misunderstood characters in modern American public life - often funny, engaging and downright on-fire about what he calls our “planet emergency”.