Not just Damon and Kunen’s (already mentioned here)…by chance, I have found yet another Science paper (this time Broecker from August 1975) making it clear that, for a few years up to then, the general consensus among scientists had been that the world was cooling:
[…] the present cooling trend […] the natural climatic cooling which, since 1940, has more than compensated for the carbon dioxide effect[…]
Time to repeat myself: we have a ‘widely accepted [by the scientific community]…global cooling trend’, at least judging from Mitchell’s work in 1972; doubts about that growing in the same scientific community from 1975/1976, as per Damon and Kunen’s paper; but not early enough to prevent Newsweek from publishing its 1975 article, one that even mentions a certain Dr Murray Mitchell. That means that pieces of the global cooling puzzle do suggest that cooling was a widely-held view in the 1970s. Admittedly, such an agreed view did not last the whole decade: rather, it concerned the 1972 to 1975 period.