Tuesday, November 11, 2008

One of the classic claims coming from those who believe global warming to be just another scare tactic is that "We had a scientific consensus about global cooling in the '70s. One decade, you have cooling; one decade you have warming. It's all just cycles." Turns out, people who say this are flat out wrong. Over at Climate Progress, Joseph Romm discusses a new scientific review article that shows that not only was there not consensus on global cooling in the seventies, but the majority of scientific articles on climate change pointed to a warming effect.
The survey identified only 7 articles indicating cooling compared to 44 indicating warming. Those seven cooling articles garnered just 12% of the citations.
The myth of global cooling was two things: 1) a man bites dog media phenomenon and 2) something perpetuated by the late and not-so-great Michael Crichton in his novel State of Fear. There's a handy graph (copied below) that shows that there were only two year in the 60s and 70s in which the number of cooling articles matched the number of warming articles.

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