In the 1960's to the 1970's
the number of peer reviewed science articles predicting WARMING outnumbered those predicting COOLING 6 to 1.
Don't believe me?
Climate science as we know it today did not exist in the 1960s and 1970s. The integrated enterprise embodied in the Nobel Prizewinning work of the Intergovernmental Panel on Climate Change existed then as separate threads of research pursued by isolated groups of scientists. Atmospheric chemists...
journals.ametsoc.org
Now, in the 1960's to 1970's the scientists were actually learning more about the Milankovich Cycles which drive the ice ages (well the Cenozoic glaciation events if you will) so of course they were going to talk about that, but that was unrelated to AGW.
From the mid 1940's to the mid 1970's the northern hemisphere was actually showing a "cooling trend" which most now believe was due to human-produced sulfate aerosols which caused the "Mid-century cooling". Once we cleaned up the air a bit the warming started up again because we were still pumping Greenhouse Gases into the atmopshere.
Don't believe me?
What most people are thinking of are a couple of articles in Time and Newsweek. Not the actual science of the times.