The 1970s Ice Age Myth and Time Magazine Covers – by David Kirtley – Greg Laden's Blog
Originally Posted by CountryBoy1981
So, yeah, that picture is photoshopped BS.
Also, a 1971 paper by Stephen Schneider, then a climate researcher at NASA's Goddard Space Flight Center in Maryland, US. Schneider's paper suggested that the cooling effect of dirty air could outweigh the warming effect of carbon dioxide, potentially leading to an ice age if aerosol pollution quadrupled. After doing some further research and a lot of math he retracted that statement. There were a few papers about science that was not fully understood at the time which suggested we might be entering a global cooling trend, but had no numbers to back it up. Mostly they were just looking at the same Milankovitch forcing and ice-core records that showed when the last couple ice ages happened and they took a guess. All of the theories in these papers have since been disproven, often by the original scientist who published it!
However, the media of the time ran with it, and so you get all the "OMG ICE AGE!!!" stories of the 1970's that have very little, if any, actual science in them.
(How many of these anti-anthropogenic, Warming-Hoax fallacy myths are we going to debunk today?)