In the 1950’s there wasn’t much talk about global warming or climate change. In fact, those terms didn’t exist back then. But rising global temperatures was the topic of discussion among three scientists in a 1954 radio program “The Reviewing Stand” from Northwestern University. Living On Earth host Steve Curwood and Dr. John Firor of the National Center for Atmospheric Research listen to excerpts of the radio show and comment on the scientists’ observations.
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