I keep thinking it was the winter of 76 or 77 that the northern Chesapeake Bay froze at the Bay Bridge. Something like a 200 year event. There was a lot of talk about a new ice age.
Humans, using them, were sure to trigger the next Ice Age. Stealing atmospheric heat, for indoor use...etc.
I believe it was the winter of 76-77. I was a Senior in High School, we went back 1 day after the Christmas break, and stayed home the rest of the month of January. Schools were closed due to a combination of snow, cold, natural gas shortage and a coal miners' strike (Thank you, Jimmy Carter!).
I finally graduated June 18th, 1977, and in August the same year, we set 21 record HIGH temperatures....
Go figure....