Global cooling was never the accepted science, that's an urban legend, like the "we only use 10% of our brains" thing.
Global warming was suspected as far back as the late 1800s, and well established by the 1970s.
Global warming was suspected as far back as the late 1800s, and well established by the 1970s.
It was accepted enough that it was taught to me in grade school, was on the cover of Time magazine, and in the news regularly.