CNN·1 min read·medium
If another advanced civilization lived on Earth before us, would we know? - CNN
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Laura Paddison
✦AI Summary
Astrobiologist Adam Frank and NASA scientist Gavin Schmidt explore the theoretical possibility of an advanced civilization existing on Earth prior to humans. The discussion centers on whether such a civilization would have left detectable geological evidence of climate change.
When astrobiologist Adam Frank walked into the office of NASA scientist Gavin Schmidt, he had what he believed was the weirdest question: do aliens experience climate change? It took just moments for…
scienceenvironment
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