Others have already mentioned that those who predicted cooling were basing it on increasing particulates. They also knew greenhouse gases would cause warming, b

Others have already mentioned that those who predicted cooling were basing it on increasing particulates. They also knew greenhouse gases would cause warming, but they thought our particulate emissions would continue to increase faster than our greenhouse gas emissions so the cooling would beat out the warming. We they right, or was the majority of scientists who felt that even with our increased particulates it would not be enough to counter the increasing greenhouse gases right? We never got to find out, because the particulate emissions are noticeable enough to the average person and annoying enough to the average person that bipartisan efforts to reduce those emissions can get political support, such as the Clean Air Act of 1970 in the US. This led to a massive reduction in particulate emissions.