That was based primarily on some media overhype and had very little scientific basis. I can give you references on that if you want. Aw heck: Was an imminent Ice Age predicted in the '70's? No explains it well.
Political pressure was exerted to make drastic changes in lifestyle, thought and social action based on those wrong-headed notions exactly as we see being done today and if we don't give time its place in this debate we will never know what we caused or avoided.