[Daveinyork]

There was once a sci fi novel by Larry Niven and Jerry Pournelle that was based on the premise that the greenhouse effect was largely local, and that it was holding off another ice age.

The story begins after the socialists take over and bans activities that they consider to be destructive to the environment, or that violate the rights of animals. What happens is the onset of the ice age, and a dramatic, and frightening, reduction in living standards, and individual liberty.

The only rebels are people living in space stations, and an underground resistance of sci fi fans, whose secret password is “fiawol” (fandom is a way of life).

[Mad Dawgg]

"There was once a sci fi novel by Larry Niven and Jerry Pournelle that was based on the premise that the greenhouse effect was largely local, and that it was holding off another ice age."

If memory serves the book is called "Fallen Angels" and there is a third author who contributed also. (First name is Michael, forgot the last one)