Earth's ancient atmosphere may have been as much as 70% carbon dioxide, finds new study that analyzed micrometeorites that fell to Earth some 2.7 billion years ago. By comparison, our atmosphere today is 0.04% carbon dioxide.

https://www.youtube.com/watch?v=hcfapTWLPg4

https://www.marketwatch.com/story/google-ordered-not-to-stifle-its-employees-ability-to-speak-about-work-2019-09-12

Hy pick's