The basis for climate science was established in the 19th century, so there’s no way they didn’t know what was coming. I was taught about the ‘greenhouse effect’/global warming in the 1980s, these corporations had scientists of their own and wanted to protect themselves from future litigation but doubled down instead of transitioning
https://theconversation.com/what-big-oil-knew-about-climate-change-in-its-own-words-170642