There were sixty theories advanced to explain the 1940-1970 global cooling. The US and Russia discussed geoengineering to stop the imminent ice age.

20 Nov 1974, Page 17 – Ukiah Daily Journal at Newspapers.com

TimesMachine: July 18, 1970 – NYTimes.com

All bad weather was blamed on global cooling.

21 Jul 1974, Page 13 – The Des Moines Register at Newspapers.com

The CIA said global cooling threatened the stability of the world.

potentialtrends.pdf

The 1940-1970 global cooling wrecked the global warming scam, so the criminals we now call “climate scientists” simply tried to erase it – claiming it consisted of “nine paragraphs in Newsweek.”

How the “Global Cooling” Story Came to Be – Scientific American

1974 2017