Carl Sagan testifying before Congress in 1985 on climate change

Original source: https://www.c-span.org/video/?125856-1/greenhouse-effect DECEMBER 10, 1985 “Witnesses testified on how the greenhouse effect will change the global climate system and possible solutions.” Instagram: https://www.instagram.com/saganism/?hl=en Twitter: https://twitter.com/saganism_?s=21 https://carlsagan.com