these facilities were expensive and the cost of upgrading them was in the billions these investments are an indication that the oil companies were already allowing for the effects of climate change at a time when scientific research into the phenomenon was still in its infancy. what do they already know did big oil really have its own secret research program for decades beforehand. our research leads us to new jersey home to a geochemist who worked on a study on behalf of the board of exxon. and he invited us to visit him. oh. good to see you at what governor yes that s me. edward garvey worked for exxon mobile from one nine hundred seventy eight to one thousand eighty three. so this is your day off you re all an old x.