At one time, “sensible people” also thought the world was flat.
I have a National Geographic from 1976 that quotes scientists regarding a global cooling. Maybe you should do some Googling.
I'm sure you have a lot of things, but there's a difference between what goes in a popular magazine and what scientific consensus was at the time..
Now, here's the thing. Your objection to Global Warming isn't based on science. I'm sure there's no level of science I could present to you that you'd accept if it mean any governmental regulation of your lifestyle. So it's not based on science, it's based on politics.