Watch Mass Extinction: Life at the Brink

This program describes the detective work and evidence for the generally accepted causes of two of the five mass extinctions, the KT and Permian. Then follows a diatribe on the speculation that human civilization may cause the sixth mass extinction.

Mass Extinction: Life at the Brink is a 2014 documentary with a runtime of 46 minutes. It has received mostly positive reviews from critics and viewers, who have given it an IMDb score of 7.5.