PIEK! made a re-edit of Silent Running for The Biggest Visual Powershow.
Silent Running is a Sience Fiction movie shot in 1972 and takes place in 2008.
At a time in which Earth's a barren place. Only a few specimens of flora have been preserved, and are currently in space in a fleet of orbiting greenhouses. In this dark Sci-Fi movie the extraterrestrial forest rangers is ordered to destroy the last forrest in the universe.
You can watch ‘Silent Running, a re-edit’ here http://www.piek.com/ned/werk/SilentRunning/index.html
This is an example of ideas in the seventies of the (near) future, and shows that these ideas near future haven’t changed...