Carl Sagan testifying before Congress in 1985 on climate change
13:06
Isaac Asimov's Vision Of The Future | Letterman
5:20
Global warming: why you should not worry
19:30
Stephen Fry Passionately Argues the Catholic Church is NOT a Force for Good | Intelligence Squared
15:58
The Amazing Recording History of Here Comes the Sun
22:14
This Will Be My Most Disliked Video On YouTube | Climate Change
6:42
Carl Sagan - Cosmos - Eratosthenes
4:14
Carl Sagan Predicted The Mess 2021 Would Be 25 years Ago
1:36:01