Life After People

Life After People is a television series on which scientists, mechanical engineers, and other experts speculate about what might become of planet Earth if humanity suddenly disappeared. The featured experts also talk about the impact of human absence on the environment and the vestiges of civilization thus left behind. The series was preceded by a two-hour special that aired on January 21, 2008, on the History Channel which served as a de facto pilot for the series that premiered April 21, 2009. The documentary and subsequent series were both narrated by James Lurie.

Format
The program does not speculate on how humanity may disappear, stipulating only that it has, and that it has done so suddenly, leaving everything behind including household pets and livestock that have to fend for themselves. The thought experiment is based on documented results of the sudden removal of humans from a geographical area and thus, the discontinuation of the maintenance of buildings and urban infrastructure. Lurie's narration begins:

What would happen if every human on Earth disappeared? This isn't the story of how we might vanish...it is the story of what will happen to the world we leave behind.

The series' episodes thematically offer examples of urban and biological decay. The focus is on specific locations such as skyscrapers, religious icons, bridges and dams, and government buildings, and the fate of certain related objects, such as artifacts, documents and human bodies. The fate of some kinds of flora and fauna are covered as well. Each episode also contains a segment in which experts examine real locations that have been abandoned by people, including ghost towns and other sites of deterioration, where the deterioration has been caused by events similar to those outlined in the episode. Although the series speculates on the fates of landmarks around the world, the main focus is on situations that may occur at locations in the United States.

The various events that may occur after people disappear suddenly are depicted using CGI dramatizations. The timeline of predicted events begins approximately one day after the disappearance of humankind and extends at various intervals up to one hundred million years into the future.

Home media
A&E Home Video has released these DVDs:

That of the original documentary:
 * Title: Life After People (History Channel).
 * UPC: 733961110906.
 * DVD Release Date: March 18, 2008.
 * Run Time: 94 minutes.

That of the first season of the series:
 * Title: Life After People: The Complete Season One.
 * UPC: 733961155303.
 * DVD Release Date: October 27, 2009.
 * Run Time: 470 minutes.

That of the second season of the series:
 * Title: Life After People: The Complete Season Two.
 * UPC: 733961221626.
 * DVD Release Date: July 27, 2010.
 * Run Time: 425 minutes.

Ratings
The two-hour special documentary had an audience of 5.4 million viewers and was the most watched program ever on the History Channel. The program was broadcast in the United Kingdom on Channel 4 and narrated by Struan Rodger on May 29, 2008 and in Australia on Channel Seven on November 25, 2008, edited down to air for 90 minutes and included additional footage of a decaying Sydney Harbour Bridge, with narration by Australian television presenter Simon Reeve.