https://en.wikipedia.org/wiki/History_of_climate_change_science https://en.wikipedia.org/wiki/History_of_climate_change_scie... >In the 1960s, the evidence for

https://en.wikipedia.org/wiki/History_of_climate_change_science https://en.wikipedia.org/wiki/History_of_climate_change_scie... >In the 1960s, the evidence for the warming effect of carbon dioxide gas became increasingly convincing. Some scientists also pointed out that human activities that generated atmospheric aerosols (e.g., "pollution") could have cooling effects as well. >During the 1970s, scientific opinion increasingly favored the warming viewpoint. By the 1990s, as the result of improving the fidelity of computer models and observational work confirming the Milankovitch theory of the ice ages, a consensus position formed: greenhouse gases were deeply involved in most climate changes and human-caused emissions were bringing discernible global warming. It's a good Wikipedia article. Exxon scientists predicted climate change, but they were also in communication with other scientists including Edward Teller, one of the key inventors of thermonuclear weapons, who was a significant public figure at the time. They didn't emphatically denounce their own technology, but they weren't radically ahead of the knowledge of other scientists at the time.