Carl Sagan: Environmental Warning
Carl Sagan explains the negative environmental impact we humans direct onto the Earth and what that may mean for our future. With all the hate and ignorance ...
About this video
Carl Sagan explains the negative environmental impact we humans direct onto the Earth and what that may mean for our future. With all the hate and ignorance spreading throughout the world today, I believe this message is more important than ever.
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Views
11
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Duration
7:55
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Published
Feb 1, 2017
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