Summary October 16, 1979 memo from Exxon’s W.L. Ferral to Exxon’s R.L. Hirsch about a study conducted by an Exxon summer employee named Steve Knisely. The study was on the potential impact of fossil fuel combustion on CO2 concentration in the atmosphere. Some of the conclusions in the study are: Source Document Share this post … Continue reading 1979 Exxon Memo on Potential Impact of Fossil Fuel Combustion