This from Shell in 1989.

Shell was given an opportunity to respond to the reporting on this and did not deny the legitimacy of the document See https://www.desmog.com/2023/03/31/lost-decade-how-shell-downplayed-early-warnings-over-climate-change/

And from the researcher who found the documents https://changerism.com/portfolio/dirty-pearls-exposing-shells-hidden-legacy-of-climate-change-accountability-1970-1990/

A classic tale of profits before people and planet. This one is particularly egregious as it effects everyone everywhere.