Reel Impact is a documentary television series from Discovery's Planet Green that broadcasts a collection of the most important, memorable, and ground-breaking documentaries to come out in recent years that expose the scientific and historical truth about environmental degradation, eco disasters, and other topics related to the powerful green movement. In these films, the beauty and status of the planet Earth is evaluated and the impact human beings are having on the natural world is exposed. Some of the documentaries, like Al Gore's An Inconvenient Truth and Leonardo DiCaprio's The 11th Hour, discuss the threat of global climate change, presenting riveting biographies of humanity's greatest threat. Some of the films, like Werner Herzog's Grizzly Man, focus on specific characters in the eco movement, while other films like Who Killed the Electric Car? dive into the politics surrounding developments in eco-friendly technology and policies. Reel Impact is an illuminating series that presents the finest eco-themed documentaries in existence.