It’s behind a paywall but here is an article from a 1958 issue of Harpers discussing a pair of scientists, Ewing and Donn, had a theory about how the last ice a

It’s behind a paywall but here is an article from a 1958 issue of Harpers discussing a pair of scientists, Ewing and Donn, had a theory about how the last ice age was caused by melting arctic ice. They were primarily trying to figure out what would cause the ocean to heat up so much so quickly. https://harpers.org/archive/1958/09/the-coming-ice-age/ https://harpers.org/archive/1958/09/the-coming-ice-age/ I have a distinct memory of my “science” textbook in 2nd grade circa 1981 had a section on the upcoming ice age. Once I realized that the book was old enough to not include the moon landing I didn’t pay much attention to it. In any case, the idea about an impending ice age was in the science zeitgeist, at least the layman understanding of it well before the 80s.