Is the extinction of the human race the final domino to fall in a chain of extinctions and species die offs that may have always started? What can we do to save the planet before the domino ends all life on earth? Thom Hartmann discusses.

Thom is a four-time Project Censored-award-winning, New York Times best-selling author. His national daily progressive radio talk show is distributed to radio stations nationwide by Westwood One, Pacifica, and Free Speech TV. More people listen daily to the Thom Hartmann Program than any other progressive talk show in the nation.