@1970s
"....wasnt the eco consensus of the '70s that we were all going to freeze to death in the new ice age.... "
No.
A researcher at the U. of Albuquerque actually checked out the scientific journals for the period. There were a few 'global cooling' articles, but they were vastly outnumbered by the 'global warming' articles (and even more that were neutral).
This dog won't hunt.