Ever since 1940 the temperature's been decreasing" reported in 1980

First published at 06:58 UTC on April 20th, 2018.
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Roger Revelle’s 1980 Discussion of CO2 and Climate Risks
Fast forward to the 1h-2m-20s mark to hear Mr. Roger Revelle mention that the globe has been cooling from 1940 to 1980, which is the time of this recording.

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