Shell and Enron Know About Climate Change

Shell and maybe Enron at the time we're talking probably late 80s early 90s but because of the futurist work that they do. They knew about climate change and they knew it was a fact since at least the late 80s and early 90s based on their own internal scientific research, yet they suppress that. Just like Kodak before them they were in love with their present and decided to write that wave as long as possible. If that's true it would seem that Shell knew about climateChange without any doubt whatsoever you know 40 years ago and yet it didn't seem to do anything at the time.