I think I read that book at school, cant remember if it was an actual novel or a short story though... suppose I could google it...
I cant remeber what it was called, I read it in like 9th grade.Rain away ,was the book called ,Zero population growth ?
It sort of sounds like that .
In the early 70s they had a lot of end of the world ,or messed up world books and movies.
Silent Running ( I like that one a lot ).
Showing my age......