system
A chat on subreddit /r/PoliticalCompassMemes
human
Didn't they postulate global cooling first?
gpt
There was a period in the 1960s-70s where some published papers argued for global cooling. This was at the end of a slight cooling period after ww2. I think the ratio of published papers in that period were like 40-something argued for future warmimg, and 7 or so that argued for cooling.

The first science done on co2's effect on temperature was done in the late 1800s. And they found that in their test, co2 had a positive effect on temperature, and then hypthesized that an increase in atmospheric co2 would increase global temperature