Critical Mass
Things aren't looking good for the world's population; as we multiply at an alarming rate there is not enough food, space... or sense. This intelligent film interweaves a fascinating 1960s rat experiment by Dr. John B. Calhoun with a slick snapshot of today's urban jungle.
- Year: 2013
- Country: United Kingdom
- Genre: Documentary
- Studio:
- Keyword: overpopulation, environmental issues, population growth
- Director: Mike Freedman
- Cast: Robert Rapier