Carl Sagan Testifying before the US Congress in 1985 About climate change - carl sagan testify on congress 1985 greenhouse effect
Witnesses testified on how the greenhouse effect will change the global climate system and possible solutions - 1985
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Rick Artemii
Jun 141 min
Find out how to help the state of Rio Grande Do Sul in this catastrophic moment! how to help people on south brazil disaster
If you want to help flood victims in Rio Grande do Sul, here are some ways you can contribute
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