Flashback 1974: Sixty Theories To Explain Global Cooling
By the 1970’s scientists were predicting a new ice age, and had 60 theories to explain it.
20 Nov 1974, Page 17 – at Newspapers.com
Nov 20, 1974: Ukiah Daily Journal: 'The cooling trend heralds the start of another ice age, of a duration that could last from 200 years to several millenia.' - 'Sixty theories have been advanced, he said, to explain the global cooling period.'