The Global Cooling Hoax
Have any of you ever had a global warming conversation with someone only to have them claim that the opinions of scientists are useless because, after all, they were predicting global cooling in the 70s? I have had that happen many times. It’s frustrating because I’ve seen the general trend of the last 130 years that you can easily find on NASA’s website and it clearly reveals a steady increase in the planet’s temperature. But, I’ve struggled with what to make of the 1970s.
The problem with the notion that scientists were predicting global cooling in the 70s is that they weren’t predicting global cooling.
That’s right, scientists were not predicting global cooling in the 1970s.
As it turns out, it was overwhelmingly the media that predicted global cooling. It is true that global temperatures dropped during the 70s, but that is not to say that scientists predicted that would continue. As a matter of fact, the overwhelming majority of them predicted the opposite, and continue to do so to this day. The American Meteorological Society conducted a fairly exhaustive survey of peer-reviewed scientific journal articles from 1965-1979 and found that only 12% of them predicted global cooling. In the time period listed, seven articles predicted global cooling, twenty could not foresee any change, and forty-four predicted warming.
I think it’s important for people to know this because the best way to combat mistaken notions is with clear-cut numerical data.
BTW, you can find global temperature averages for the last 130 years here.