From The Guardian:
‘Shell knew’: oil giant's 1991 film warned of climate change danger
Shell’s 28-minute film, called Climate of Concern, was made for public viewing, particularly in schools and universities. It warned of extreme weather, floods, famines and climate refugees as fossil fuel burning warmed the world. The serious warning was “endorsed by a uniquely broad consensus of scientists in their report to the United Nations at the end of 1990”, the film noted.
“If the weather machine were to be wound up to such new levels of energy, no country would remain unaffected,” it says. “Global warming is not yet certain, but many think that to wait for final proof would be irresponsible. Action now is seen as the only safe insurance.”
A separate 1986 report, marked “confidential” and also seen by the Guardian, notes the large uncertainties in climate science at the time but nonetheless states: “The changes may be the greatest in recorded history.”
The Guardian received the video from The Correspondent (which you should get in the habit of following).
Shell made a film about climate change in 1991 (then neglected to heed its own warning)
Shell Oil Company has spent millions of dollars lobbying against measures that would protect the planet from climate catastrophe. But thanks to a film recently obtained by The Correspondent, it’s now clear that their position wasn’t born of ignorance. Shell knows that fossil fuels put us all at risk – in fact, they’ve known for over a quarter of a century. Climate of Concern, a 1991 educational film produced by Shell, warned that the company’s own product could lead to extreme weather, floods, famines, and climate refugees, and noted that the reality of climate change was "endorsed by a uniquely broad consensus of scientists."
The question, ladies and gentlemen, is what did Shell know and when did they know it. The Correspondent would like to enter into evidence Exhibit A: Climate of Concern.
Follow the link to watch the video.