Climategate: The future in the past
In a Dec. 1970 article titled: “Polar Ice and the Global Climate Machine” in the Bulletin of the Atomic Scientists, page 40, author: Joseph O. Fletcher, the concern was that there was no model for the vast thermodynamic engine that was the atmosphere and oceans. That there appeared to be a potential influence by CO2 and other chemicals on the atmosphere, this was 40 years ago.
I would recommend that you take a look at this article (and the Bulletin of Atomic Sci if you are interested in the Climate modeling, it appears to me that it is the paper that asks the questions we are attempting to answer.
Interesting though that the article was written during a time where scientists sometimes would make recommendations that use engineering solutions.