"During the 1970s
the media promoted global cooling alarmism with dire threats of a new ice age. Extreme weather events were hyped as signs of the coming apocalypse and man-made pollution was blamed as the cause. Environmental extremists called for everything from outlawing the internal combustion engine to communist style population controls. "Pollution Prospect A Chilling One""
Your own source says "the media", not NASA, NOAA or the IPCC (remember, the leading experts on studying the climate?)
"Climate science as we know it today did
not exist in the 1960s and 1970s. The integrated
enterprise embodied in the Nobel Prize-winning
work of the Intergovernmental Panel on Climate
Change existed then as separate threads of
research pursued by independent groups of
scientists. Atmospheric chemists and modelers
grappled with the measurement and
understanding of carbon dioxide and other
atmospheric gases while geologists and
paleoclimate researchers tried to understand when
Earth slipped into and out of ice ages, and why.
An enduring popular myth suggests that in the
1970s the climate science community was
predicting “global cooling” and an “imminent” ice
age, an observation frequently used by those who
would undermine what climate scientists say today
about the prospect of global warming.
A review of the literature suggests that, to the
contrary, greenhouse warming even then
dominated scientists’ thinking about the most
important forces shaping Earth’s climate on
human time scales. More importantly than
showing the falsehood of the myth, this review
shows the important way scientists of the time built
the foundation on which the cohesive enterprise of
modern climate science now rests."
http://ams.confex.com/ams/pdfpapers/131047.pdf
