Carl Sagan Warns Congress about Climate Change (1985)
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openculture.com
2.8M views · 47K reactions | Carl Sagan, who would have been 87 years old today, sent a message out to the Universe during his 1977 #XmasLectures. We worked out how far that message would have travelled at the speed of light since then.  Watch his full lectures, "The Planets" (free/no registration): rigb.org/explore-science/explore/video/planets-earth-planet-1977 | Royal Institution of Great Britain | Facebook
2:20
2.8M views · 47K reactions | Carl Sagan, who would have been 87 y…
2.8M views1 week ago
FacebookRoyal Institution of Great Britain
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Carl Sagan's Cosmos: A Personal Voyage (1980) Full Documentary
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filmsforaction.org
To learn more view the full video on Youtube (link in bio) #CarlSagan #ClimateCrisis #ClimateAction #ClimateChange #GlobalWarming
To learn more view the full video on Youtube (link in bio) #CarlSagan #…
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