Before Al Gore’s Academy Award-winning documentary “An Inconvenient Truth,” “The Unchained Goddess” warned millions of students in middle school classrooms across the United States of global warming for decades. This documentary produced in 1958 by Frank Capra first appeared on Bell Labs’ television program “The Bell Telephone Hour.” Here’s a clip.

This video was published on YouTube by hmmmmmmmmm2 on Feb. 2, 2007.