"Thus, even if solar or nuclear technologies were to be considered viable alternatives, they would not really displace fossil fuel energy for next 40 to 50 year

"Thus, even if solar or nuclear technologies were to be considered viable alternatives, they would not really displace fossil fuel energy for next 40 to 50 years, and CO2 growth would have to be estimated based on realistic market displacement of the fossil fuel technologies." [0] 40-50 years from 1982 starts about now. So tell me, would it make a difference if we have started 40 years ago? Or should we wait another 40 since "everyone in western world is creating CO2 anyway"? [0] https://www.documentcloud.org/documents/2805576-1982-Exxon-Memo-to-Management-About-CO2 https://www.documentcloud.org/documents/2805576-1982-Exxon-M... page 24